Myrons Mopeds

 

 

 

 

 

 

 

G1 and G1R have a 1-speed automatic with pedals, and same bottom-end parts as V1P.

G1-KS and G1R-KS have a 1-speed auto, kick start, and same bottom-end parts as V1P-KS.

 

---

1. 1972-85? Minarelli G1, G1-KS

Minarelli G1 and G1-KS (1972-85?)
figure Minarelli# qty MMI# price  description
00015 15.0005.9 1 5640  none  carburetor Dellorto SHA 14/9  jet #47
00015 15.0016.9 1 5650 $70.0 carburetor Dellorto SHA14/12 jet #52
00015 15.0016.9 1 0000 $00.0 ∅18 sleeve, no air cover, no cable pipe
00019 19.0304.0 1 0000  none  cylinder S40 all-iron, M28 ex. thread
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
00031 31.0005.6 1 0000 none  air cover 10236 cylindrical
00062 71.0410.0 1 4540 none  piston kit 38.8 rings 1.5
00062 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0152.0 1 0000  none  head (testa) SPORT
00082 82.0002.9 1 0000  none  magneto Bosch 0212.005.027 ∅80 Ο♦♦
00111 11.0132.9 1 W8A  $5.00 spark plug W145T1=W8A=BR5HS
00112 11.0203.0 1 5520 $7.00 spark plug cap for ∅5 wire
00212 21.0007.7 1 0000  none  clutch cover metal natural
00212 21.0209.7 1 5262  none  clutch cover metal black
00214 21.0352.0 1 0000  none  magneto cover grey
00214 21.0353.0 1 0000  none  magneto cover black
00381 38.0010.0 1 4465  none  late cone crank G1,V1P M10-1.25 LH
00000 00.0000.0 1 4465  none  rod Ø15.00 x 14 for needle bearing
00582 58.0220.0 1 4800 $12.0   9 tooth sprocket (1hp, 20mph)
00582 58.0221.0 1 4810 $19.0 10 tooth sprocket (25 or 30mph)
00582 58.0222.0 1 4820 $15.0 11 tooth sprocket (2hp, 30mph)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05113 51.0301.9 1 4475 $15.0 piston bearing Ø12 Ø15.00 x 15
05320 53.0302.0 1 0000 none  base gasket ∅44 40×40
49005 49.0018.0 1 5880 $4.00 air cover clamp with screw
49046 49.0326.0 1 6275 $1.00 cone-clutch lock nut 10-1.25×6 LH
49015 49.0125.8 1 4730 $2.00 key 3.0 x 3.6 x 9.5 M85 for Bosch
49040 49.0312.0 1 4750 $7.00 flywheel nut (dado) M10-1.25 x 14 hex 15
49084 49.0509.0 1 0000 $3.50 cylinder stud M6 x 109 (110)

Magneto Parts for Bosch 0212.005.027 ∅80 2-wire, int. spark
00821 82.0001.6 M31  1 $15.0 points M31 with eyelet wire
00823 82.0130.6 M32  1 $15.0 condenser M32 with screw post
00828 82.0014.6 0000 1  none  stator assy Bosch
00826 82.0202.6 0000 1  none  flywheel ⇒ Bosch

Minarelli G1-KS on ’80-82? Italjet M5C, ’82-84? Italjet M5D

 

 

---

2. 1979-85? Minarelli G1R, G1R-KS

Minarelli G1R and G1R-KS (1979-85?)
figure Minarelli# qty MMI# price  description
00015 15.0015.9 1 5650 $70.0 carburetor Dellorto SHA14/12 jet #52
00015 15.0015.9 1 0000 $00.0 ∅18 sleeve, no air cover, no cable pipe
00019 19.0046.0 1 0000  none  cylinder sleeved alum. 38.8 S40 Radiale
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
00062 71.0419.0 1 0000  none  piston kit 38.8 rings L2.0+1.5
00077 77.0172.0 1 0000  none  head 38.8 grey Radiale
00077 77.0421.0 1 0000  none  head 38.8 black Radiale
00082 82.0029.9 1 0000  none  magneto Ducati 31.03.73
00381 38.0012.0 1 0000  none  crankshaft (imbiellaggio)
00681 68.0115.0 1 4640 $10.0 lower ring 38.8 x 1.5 GN
00682 68.0116.0 1 0000  none  upper L-ring 38.8 x L2.0
05320 53.0306.0 1 0000 none  base gasket ∅47 48×48
49084 49.0513.0 4 0000 $3.50 cylinder stud 7 x 118.5 (120)

Magneto Parts for Ducati 31.03.73 ∅80 ⇒ 2-wire, ext. spark
figure Minarelli# qty MMI# price  description
00821 82.0011.6 1 M18   $00.0 points M18 ??
00823 82.0134.6 1 M17T $00.0 condenser M17T ?? (∅17.9) use M17

Minarelli G1R-KS on ’80-82 Italjet JC5C, ’82-84 Italjet JC5D

 

 

 

 

Minarelli V2 and C2 have a variable-pulley automatic transmission. V2 has many parts in common with V1. C2 has many parts in common with V1P. 1970’s and 80’s V1/V2/C2 have a few parts in common with the late 1950’s Minarelli P1, such as the cast iron cylinder.

 

 

 

 

 

 

 

 

---

1. 1977-80? Minarelli V2 

This V2 parts list is for the version sold in Italy.

 

Minarelli V2 (1977-80?)
figure Minarelli# qty MMI# price  description
00  15 15.0016.9 1 0000  none  carb SHA14/12 jet 52 use 15.0024.9
00  15 15.0024.9 1 5650 $70.0 carb SHA14/12 jet 52, US 2.0 hp
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486 main jet #52
15170 15.0490.6 1 6430 $2.00 6123 float gasket
15255 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
15300 15.0701.6 1 6550 $10.0 2838 float needle
15000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
00019 19.0311.0 1 5480  none  cylinder all-iron, US 2.0 hp

00031 31.0013.7 1 5660 $32.0 air cover bare S1 Minarelli grey
00031 31.0025.7  5660M $15.0 air cover bare S1 Minarelli black
0 31/1 31.0018.7 1 0000 none  air cover bare S3 F44 grey
0 31/1 31.0024.7 1 6670 $11.0 air cover bare S3 F44 #8603 black
0 31/2 31.0021.7 1 6660 none  air cover bare S33 grey use F44
0 31/2 31.0026.7 1 0000 none  air cover bare S33 #8602 blk. use F44
0 31/3 31.0023.7 1 5660 $25.0 air cover-clamp S4 Min. grey used
00062 71.0409.0 1 0000  none  superseded use 71.0410.0
00062 71.0410.0 1 4540 none  piston kit 38.8 ball top 1.5 rings
00062 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0124.0 1 5500 $39.0 head
00080 80.0103.0 1 5410 $40.0 fan early ’69-80 V1
00  82 82.0002.9 1 0000  none  Bosch 0212.005.027 ∅80 wires-Ο♦♦♦
00821 82.0001.6 1 M31   $15.0 points = Bosch 2207 013 005 w/wire
00823 82.0130.6 1 M32   $15.0 condenser = Bosch 2207 330 050
00  82 82.0004.9 1 0000  none  CEV 6931 magneto  ∅80 wires-Ο♦♦♦
00  82 82.0033.9 1 5360 $280  CEV 6932 magneto  ∅80 wires-Ο♦♦♦ US
00821 82.0004.6 1 M18   $16.0 points equal to CEV 04221
00823 82.0131.6 1 M17   $13.0 condenser equal to CEV 07365
00111 11.0101.9 1 0000  none  spark plug WK175T1 use BR6HS
00111 11.0133.9 1 5510 $5.00 spark plug W175T1=W7A=BR6HS
00112 11.0202.0 1 5520 $6.00 spark plug cap for ∅7 wire
00211 21.0111.0 1 0000  none  fan cover metal black
00212 21.0234.7 1 0000  none  clutch cover metal black
00218 21.0552.0 1 5390  none  fan base metal 3-bolt for metal cover
00381 38.0004.0 1 0000  none  crankshaft
00382 38.0061.7 1 5560 $35.0 connecting rod assy with bushing
00582 58.0205.0 1 0000  none  14 tooth sprocket
00606 60.0181.0 1 5585 36-25 Ø18×12 front intake 14-12-12 (2.0hp)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05320 53.0304.0 1 5460 $3.50 cylinder base gasket
05372 53.0502.9 4 4790 $6.00 pedal+variator seal 15 x 24 x 5
05374 53.0504.9 1 0000 $7.50 pulley outer seal     16 x 24 x 5
05376 53.0506.9 2 4710 none  crankshaft seal       17 x 35 x 8
05379 53.0510.9 1 0000  none  pulley inner seal     30 x 47 x 7
49005 49.0018.0 1 5880 $4.00 air cover clamp ∅60 replica with screw
49084 49.0510.0 4 5530 $4.50 cylinder stud M6 x 136

49244 49.0861.9 3 0000 $0.70 fan base bolt M6x20 TCCE
49300 49.0935.9 4 5420 $1.20 fan screw xxxxx  M4x10 TGS (threads 5-8mm)
49245 49.0862.9 3 5450 $0.80 metal fan cover  M6x30 TCCE

 

 

 

 

 

 

 

 

 

 

 

 

---

2. 1981-85? Minarelli C2

C2 has a variable-pulley automatic transmission. 

Minarelli C2 (1981-85?)
figure Minarelli# qty MMI# price  description
00  15 15.0016.9 1 0000  none  carb SHA14/12 jet 52 use 15.0024.9
00  15 15.0024.9 1 5650 $70.0 carb SHA14/12 jet 52, US 2.0 hp
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486 main jet #52
15170 15.0490.6 1 6430 $2.00 6123 float gasket
15255 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
15300 15.0701.6 1 6550 $10.0 2838 float needle
15000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
00019 19.0320.0 1 5480  none  cylinder “P” all-iron

0 31/1 31.0024.7 1 6670 $11.0 air cover bare S3 F44 #8603 black
00062 71.0410.0 1 4540 none  piston assy standard 38.8 original
00062 71.0410.0 1 4540 $60.0 piston assy standard 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0140.0 1 5505 none  head square V1P
00080 80.0108.0 1 5415 none  fan V1P (not V1)
00082 82.0029.9 1 0000  none  Ducati 31.03.73 mag. ∅80 Ο♦♦♦
00082 82.0033.9 1 5360 $280  CEV 6932 magneto    ∅80 Ο♦♦♦ USA
00111 11.0132.9 1 W8A  $5.00 spark plug W145T1=W8A=BR5HS
00211 21.0114.0 1 5445 $59.0 fan cover V1P black used
00218 21.0558.0 1 5405 $38.0 fan cover base V1P black
00582 50.0204.0 1 4823 $21.0 13 tooth sprocket (for C2)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05320 53.0304.0 1 5460 $3.50 cylinder base gasket
49005 49.0018.0 1 5880 $4.00 air cover clamp ∅60 replica with screw
49084 49.0510.0 4 5530 $4.50 cylinder stud M6 x 136

49300 49.0935.9 4 5420 $1.20 fan screw xxxxx  M4x10 TGS (threads 5-8mm)
49315 49.0950.9 4 7050 $1.00 plastic fan cover M4x25 TGS

 

The C2 was on only a few deluxe US moped models. It has the same all-iron cylinder, piston, “square” head, intake, carburetor, fan, and magneto as a “late” 1979-1985 V1. But the transmission and engine case is much different and longer. The bore is 38.8, not 38.7. The sprocket is 13T, not 11T.

Once again Minarelli made a two speed moped engine, but sales were less than they hoped for. The huge extra cost of the variator drive made it less affordable for most people. Morini had also made the M101, a two speed variator engine, and the MO2 two speed. But the Morini M1 reed valve one speed had better average acceleration than the Morini MO1 piston port two speed did, for a much lower cost and weight. By the late 1980’s, wise Minarelli gave up on two speeds, and “saw the light” of the one speed with case reed induction. 

 

 

 

 

 

 

 

 

Contents:
00  years  carb ∅  case ndcovers cyl. 1956 part #s
1. ’63-66? ∅12 ∅44 round round iron P4      
1. ’66-67? ∅19 ∅44 round round iron P4S Sport
1. ’66-67? ∅20 ∅44 round round iron P4SS Super Sport

2. ’65-70? ∅20 ∅44 round round iron P4-55 kits
2. ’65-70? ∅20 ∅44 round round iron P4-50 racing
2. ’65-69? ∅20 ∅44 round round iron P4-60 racing
00  years  carb ∅  case ndcovers cyl. 1967 part #s
3. ’67-70? ∅12 ∅44 round round iron P4S 
3. ’71-72? ∅19 ∅47 round round alu. P4S-al 
3. ’71-72? ∅19 ∅47 round round alu. P4S-70
00  years  carb ∅  case ndcovers cyl. 1970 part #s
4. ’71-73? ∅12 ∅44 round angle iron P4V 
4. ’72-74? ∅19 ∅47 round angle  alu. P4V-70 
4. ’74-75? ∅19 ∅48 round angle  alu. P4V-75 

5. ’71-79? ∅12 ∅47 angle  angle  iron P4E Export
5. ’72-79? ∅19 ∅47 angle  angle  alu. P4E-al Export
5. ’72-79? ∅12 ∅44 round angle iron P4A

6. ’72-81? ∅12 ∅47 angle  angle  alu. P4CS Compact System

 

Sources:

Piccolo Giolielo – Tecnica Minarelli P4 P6 50cc by Luigi Corbetta
Motoclisimo D’Epoca 4/2003 at  fantichistisettanta.forumfree.it.

Catalogo Ricambi Generale 1979 by Motori Minarelli
at  passione50cc.forumfree.it.

Tecnica Motori Minarelli 50cc P4 ovalino, Monza, Cadetti, Cross
by motomorini173 at  moto gran premio e 50ini.

Eclates des Moteurs collected by The Minarellist   
parts for sale, free pdf manuals at  Le Minarelliste.

Parts Lists and Manuals at indiandirtbikeparts.com

Service and Parts Bulletins at indiandirtbikeparts.com

 

---

1. 1963-67 Minarelli P4, P4S, P4SS

P4 has a 4-speed, foot-shift, manual clutch, kick start. All P4 crankshafts and cases have a width of 32mm between the bearings. P6 is wider, 36mm. Early P4 crankshafts have a 13mm right cone. In 1971 it became 15mm. 

P4S changes: The carburetor and intake changed from Dellorto SHA 14/12 to UA19S side-float type. The cylinder, piston and rings changed changed from 38.0 x 2.5 to 38.8 x 1.5. The compression ratio increased from 7.7 to 9.0. The head changed from small round fins M2-40 to bigger straight fins M24-12. The exhaust nut thread changed from M28 to M32. The nut goes over the pipe, so the pipe is smaller than that.

 
1. ’63-66? P4     47.7cc (38.0 x 42)
2. ’66-67? P4S   49.6cc (38.8 x 42) Sport
3. ’66-67? P4SS 49.6cc (38.8 x 42) Super Sport
4. ’63-66? P4 parts list

4sS 1956#   Minarelli#  price  4 is P4, s is P4S, S is P4SS .
100 A2-11   71.0405.0 $65.0 piston kit 38.0 dome top
011 A24-31 71.0410.0 none  piston kit 38.8 ball top
011 A24-31 71.0410.0 $60.0 piston kit 38.8 GOL 0034
200 A2-12   00.0000.0 $11.0 piston ring 38.0 x 2.5 GN
022 A24-7   68.0115.0 $10.0 piston ring 38.8 x 1.5 GN
110 A2-8     51.0132.7 $5.00 p. bushing ∅11.7-15×13 note 1
001 A42-10451.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
111 A2-9     56.0601.0 $9.50 piston pin ∅12.00 x 31.5
222 A2-10   03.0213.0 $1.50 piston pin clip ∅12
110 A24-10 38.0005.0  none  crank T-type for bushing
001 A24-32 38.0000.0  none  crank O-type for bearing
110 A24-15 38.0060.7  none  rod 14.95 x 13 for bushing
001 A42-101 0.0000.0  none  rod 15.00 x 14 for bearing
100 M2-40  00.0000.0  none  head 38.0 (testa) small rounded
010 M24-12 77.0152.0  none  head (testa) 38.8 Sport QUADRO
001 M31-??  77.0161.0  none  head (testa) 38.8 Sport RECORD
444 C2-17   49.0304.9 $0.60 head nut M6 x 6
444 M2-13  49.0509.0 $3.50 cylinder stud M6 x 109 (110)
111 C1-17   51.0205.9 $10.0 left bearing 17-40-12 #6302
222 A2-19   51.0203.9 $10.0 right bearing 15-35-11 #6202
222 A2-20   53.0506.9 $7.50 left crank seal 17-35-8 or 7
111 A2-21   00.0000.0 $7.00 right crank seal 15-30-8 or 7
100 M2-5    00.0000.0  none  cylinder C iron 38.0 ex-M28
011 M24-13 19.0306.0  none  cylinder    iron 38.8 ex-M32
111 M2-10   53.0302.0 none  base gasket ∅44 40×40
100 M2-27   00.0000.0  none  exhaust (scarico) M28 thread
011 M24-21 00.0000.0  none  exhaust (scarico) M32 thread
100 M2-44   00.0000.0  none  intake pipe 12 id x 18 od
010 M24-15 00.0000.0  none  intake pipe 19 id x 24 od
001 M31-26 00.0000.0  none  intake pipe 20 id x 23 od
100 M2-45  15.0024.9 $70.0 Dellorto SHA14/12 note 2
010 M24-25 00.0000.0  none  carb Dellorto UA19S
001 M24-27 00.0000.0  none  carb Dellorto UB20S with bell
111 A2-14   00.0000.0  none  pinion gear washer
111 A2-25   00.0000.0  none  pinion gear key
111 A42-1   00.0000.0  none  pinion gear 13T ∅13
111 A42-2   00.0000.0  none  pinion gear nut
111 A2-16   49.0124.8  none  key 3.0-3.7-9.6  use M85
111 A2-16   49.0125.8 $2.00 key 3.0-3.6-9.5 M85 note 3
111 A2-17   49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
100 M2-19  82.0000.0  none  magneto ⇐ CEV 6067 ∅94 o♦♦ 6V early
011 M16-12 00.0000.0  none  magneto 6V 18w internal spark

Note 1. The piston pin bushing must be reamed after installation from 11.7 to 12.0 mm with special tools, an adjustable reamer and reamer holder tool. Here is more info.

Note 2. The genuine Dellorto SHA14/12 carburetor comes with a 52 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

Note 3. In March 1974 the flywheel key changed from 3.0 x 3.7 x 9.6 to #M85 3.0 x 3.6 x 9.5. 

 

 

 

---

2. 1965-70 P4 Kits and Racers

Transformation Kits (Serie Transformazoni) with bore ∅41:

’65?-70? P4 Transformation Mini Monza 
1956#    Minarelli#   price  55.4 cc (41.0 x 42)
A24-50 71.0475.7  none  piston 41.0 flat top L-ring
M24-27 15.0000.0  none  carb Dellorto UB20S with bell (cornetto)
M24-50 19.0000.0  none  cylinder iron ∅41.0 M32 thread
M24-51 77.0000.0  none  head (testa) 41.0
M31-26 15.0000.0  none  intake pipe 20 id x 23 od

’65?-70? P4 Transformation Monza
1956#    Minarelli#   price  same as Mini Monza except:
M24-50 19.0000.0  none  cylinder ∅41.0 exhaust 35

’65?-70? P4 Transformation Super Monza
1956#    Minarelli#   price  same as Monza except:
M24-55 77.0000.0  none  head (testa) 41.0 with bigger fins

 

---

This late 1960’s Minarelli P4  engine family was intended for racing or sport riding. 

P4 Racing changes: The crank changed from A24-32 (cone ∅13 pork chop flywheel) to A42-100 (cone ∅15 full circle flywheel). The width remained at 32mm. The piston changed from A24-31 (dome top 2.5 rings) to A42-102 (flat top L2.0 and 1.5 rings). The carburetor and exhaust got bigger.

’65-70? P4 50 RG Regolarita 49.6cc (38.8 x 42)
1956#    Minarelli#   price  same as P4S except for:
A42-102 71.0413.0  none  piston 38.8 flat top L-ring
A42-102 71.0463.7  none  piston 39.0 oversize
A42-100 38.0063.7  none  crankshaft cone ∅15 full circle
A24-104 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
M24-30   15.0000.0 none  carb Dellorto UB20S with filter
M31-26   15.0000.0 none  intake pipe 20 id x 23 od
M42-111 00.0000.0 none  exhaust (scarico) ∅35 x 320
M42-102 19.0000.0 none  cylinder iron ∅38.8 Special
M42-208 82.0000.0 none  magneto 6V 18w int. spark
M42-208 82.0000.0 none  Ducati 31.02.37

’65-71? P4 50 SP Special (Velocita) same as RG except:
1956#    Minarelli#   price  
M42-107 00.0000.0  none  exhaust (scarico) ∅35 x 300

’65-71? P4 50 CR Cross same as SP except:
1956#    Minarelli#   price  
M24-30   15.0000.0  none  carb Dellorto UB20S with filter
M42-208 82.0000.0  none  magneto 6V 18w int. spark,
M42-208 82.0000.0  none  Ducati 31.02.32 (no lights)

In 1965 a new 60 cc class was launched in Italy to replace the 50 class. In 1970 it returned to 50 cc.

’65-69 P4 60 CA Cadetti (Velocita)
59.2cc (41.4 x 44) piston port induction
1956#    Minarelli#   price
A42-203  68.0000.0  none  piston 41.4 with 6.5 skirt cut
M24-27   15.0000.0  none  carb Dellorto UB20S with bell (cornetto)
M42-211 00.0000.0  none  exhaust (scarico) ∅35 x 295
M42-202 19.0000.0  none  cylinder iron ∅41.0 Cadetti
M42-208 82.0000.0  none  magneto 6V 18w int. spark,
M42-208 82.0000.0  none  Ducati 31.02.37

’65-69 P4 60 CR Cross 
58.1cc (41.0 x 44) piston port induction
1956#    Minarelli#   price
A42-205  68.0000.0  none  piston 41.0 with 5.5 skirt cut
M24-30   15.0000.0  none  carb Dellorto UB20S with filter
M42-111 00.0000.0  none  exhaust (scarico) ∅35 x 320
M42-202 19.0000.0  none  cylinder iron ∅41.0 Cadetti
M42-208 82.0000.0  none  magneto 6V 18w int. spark,
M42-208 82.0000.0  none  Ducati 31.02.32 (no lights)

Top: 1965 Italjet Vampiro racer with P4 60 CA Cadetti (piston port induction) engine. The intake goes to the cylinder. The caption says “The Italjet Vampiro with Minarelli 60 engine presented in Monza shortly before the 1965 Milan Show. It will sell for 180 lire including the plastic fairing. Bore and stroke dimensions 41.4 x 44mm = 59.2cc. Note the built continuous double cradle frame and the four-shoe front brake.”

Bottom: 1967 Minarelli factory racer with P4 60 (rotary induction) engine. The intake goes to the crankcase. The caption says “The “lamellar” Minarelli prepared for the 1967 season has the same bore and stroke measurements as the conventionally fueled model, but delivers 9.5 HP at 10,800 rpm against the 9.0 at 10,800 rpm of the “first manner” Italjet which will also be referred to later. It comes from the “lamellar” propeller (rotary induction), with the 17 mm carburetor in direct communication with the crank arm. Always with 4% lubrication.”

In the 70’s and 80’s this engine was incorrectly referred to as a reed valve (lamellare) type, but it did not have a reed valve. Only 60 of these factory racers had this different intake system, according to moto gran premio e 50ini.  Instead of piston-controlled intake (induction), it had crankshaft-controlled (rotary valve) induction. That’s what Vespa Ciao had since 1968, and Yamaha had since 1961. The reed valve had not been invented yet. It was later invented by Yamaha and first produced in 1972. 

 

’66?-69? P4 60 QM (motor-car)
58.1cc (41.0 x 44) this also had that long stroke crank

 

 

Motori Minarelli is born: In 1967 the company name and logo changed, from F.B. Minarelli to Motori Minarelli. Above in the 1967 ad they showed off their new logo by making it as big as possible, filling an entire page width.

 

 

---

3. 1967-70 Minarelli P4S, P4S-al, P4S-70

Late P4S changes: This ’67-73 late P4S is 95% the same as ’65-67 P4S. Only some kick start and gearshift parts are different. This is evident from the illustrations and part numbers. 

 
1. ’67-70 P4S  49.6cc (38.8 x 42) on 2,3. ’70-73? Fantic Chopper, Diablo
4. ’69-70 Indian Papoose, Super Scrambler, ’71 Bobcat 50, Scrambler 50
5. ’72 Indian (Italjet) JC54 , SE54 and ’67-72 Italjet JC54, SE54, others

 

P4S-70 changes: The case, cylinder, piston and head changed for the bigger bore, from 38.8 to 45.0 mm. In 1971 the crankshaft changed from piston pin bushing type to a needle bearing type. 

 
1. ’71-72 P4S-70  69.9cc (45.0 x 44) on ’71-72 Indian (Italjet) SE74,
2. ’71-72 Broncco (Fantic) Diablo
3. ’72 P4S-70 and ’73 P4V-70 comparison

 

5a7  1967#   Minarelli#  price     5 is P4S, a is P4S-al,  7 is P4S-70
110 012050 71.0410.0 none  piston kit 38.8 ball top
110 012050 71.0410.0 $60.0 piston kit 38.8 GOL 0034
001 000000 71.0485.7  none  piston kit ∅45.0 dome top 1.5 rings
220 012054 68.0115.0 $10.0 piston ring Ø38.8 x 1.5 GN
110 012067 51.0132.7 $5.00 bushing ∅11.7-15 x 13 note 1
110 112000 38.0005.0  none  crank T-type 14.95 x 13 for bushing
110 112002 77.0152.0  none  head (testa) 38.8 Sport QUADRO
100 112004 70.0110.0  none  right case P4 rounded
100 112005 70.0610.0  none  left case P4 rounded
111 112085 53.0503.9 $7.00 right crank seal 15-30-8or7
100 162003 19.0306.0  none  cylinder iron 38.8 M32 ex thread
400 162010 49.0509.0 $3.50 cylinder stud M6 x 109 (110)
400 162011 49.0304.9 $0.60 head nut M6 x 6
400 162012 49.0603.9 $0.20 head washer ∅6
100 162174 53.0302.0  none  base gasket ∅44 40×40
111 162181 53.0506.9 $7.50 left crank seal 17-35-8or7
111 162190 51.0205.9 $10.0 left crank bearing 17-40-12 #6302
111 162191 51.0203.9 $10.0 right crank bearing 15-35-11 #6202
100 811901 00.0000.0  none  carb Dellorto UA18? side-float
001 811901 00.0000.0  none  carb Dellorto SHB 19/19
100 912301 00.0000.0  none  magneto 6V 18w internal spark
100 000000 71.0611.7  none  gasket set P4-SP iron

 

Note 1. The piston pin bushing must be reamed after installation from 11.7 to 12.0 mm with special tools, an adjustable reamer and reamer holder tool. Here is more info.

 

---

4. 1971-75 Minarelli P4V, P4V-70, P4V-75

Minarelli part numbers changed sometime around 1970.

P4V changes: The ’60’s rounded engine covers became angular, to fit the same rounded cases. In 1971 the crankshaft changed from axe (mannaia) shaped, also called pork chop shaped. The piston pin bushing 38.0005.0 changed to a needle bearing 38.0017.0. 

 

1. 1971-75? P4V      49.6cc (38.8 x 42), 2. P4V parts, 3. P4V list 
4. 1973-74 P4V-70 69.9cc (45.0 x 44) on Indian SE/ME/MX74
 and ’74-75 P4V-75 74.7cc (46.5 x 44) on Indian ME/MX74

 

#     VPP  Indian# 0  Minarelli#  price  V=P4V, P=P4V-70, P=P4V-75
0     100  2000.1000 38.0017.0  none  crankshaft ’71-on 50cc ∅15 x 42
0     011  2120.1018 00.0000.0  none  crankshaft ’72-75 70cc ∅15 x 44
1     800  2000.1000 49.0863.9 $1.00 cover screw M6 x 30 allen black
1     088  2300.1121 00.0000.0 1 -.60 cover screw M6 x 30 slot
2     111  2110.1008 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
3     100  2000.1000 56.0601.0 $9.50 piston pin ∅12 x 31.5
3      010 2110.1009 00.0000.0 $0.00 piston pin ∅12 long
3     001  2150.1010 00.0000.0 $0.00 piston pin ∅12 longer
4     222  2110.1010 03.0213.0 $1.50 piston pin clip  Ø12
5     100  2000.1000 71.0410.0 none  piston kit 38.8 ball top
5     100  2000.1000 71.0410.0 $60.0 piston kit 38.8 GOL 0034
5     010  2110.1011 00.0000.0  none  piston kit 45.0 std 70cc
5     001  2150.1001 00.0000.0  none  piston kit 46.5 std 75cc
6     200  2000.1000 68.0115.0 $10.0 piston ring Ø38.8 x 1.5 GN
6     100  2000.1000 71.0805.0  none  ring set 38.8 x 1.5 GN std 50cc
6     010  2110.1016 00.0000.0  none  ring set 45.0 x 1.5 GN std 70cc
6     001  2150.1006 00.0000.0  none  ring set 46.5 x 1.5 GN std 75cc
7     111  2300.1024 49.0124.8  none  flywheel key 3.0-3.7-9.6 use M85
7     111  2301.1024 49.0125.8 $2.00 flywheel key 3.0-3.6-9.5 M85 note 1
8     222  2300.1028 51.0207.9 $16.0 L/R crank bearing 6203/C3
9     222  2110.1121 53.0506.9 $7.50 L/R crank seal 17-35-8 or 7
10   111  2110.1023 16.2044     none  pinion gear key (to 3-’74) note 2
11   222  2110.1026 51.0203.9 $10.0 bearing 6202
12   222  2110.1099 49.0603.9 $0.20 intake washer ∅6
13   111  2120.1024 01.0304.7  none  main shaft Z=10-14-18-20
15   111  2110.1028 51.0137.0 none  L main shaft bushing ∅13-17 x 12
25   111  2110.1041 51.0137.0 none  R drive bushing ∅13-17 x 13
28   111  2110.1042 49.0682.0  none  drive washer ∅15-35 x 1
29   111  2110.1043 53.0502.9 $6.00 drive seal 15-24-5
32   111  2000.1000 49.0313.9  none  sprocket nut
33   111  2110.1052 40.0802.7  none  pinion gear 13T
34   011  2110.1054 00.0000.0  none  pinion gear washer
35   111  2110.1055 49.0310.0  none  pinion gear nut
49   111  2000.1000 49.0317.0  none  clutch nut M14-1.0
58   100  2000.1000 70.0110.0  none  right case half ∅44 P4V
58   010  2120.1013 00.0000.0  none  right case half ∅47 P4-70
58   001  2150.1029 00.0000.0  none  right case half ∅48 P4-75
59   100  2000.1000 70.0610.0  none  left case half ∅44 P4V
59   010  2120.1013 00.0000.0  none  left case half ∅47 P4-70
59   001  2150.1028 00.0000.0  none  left case half ∅48 P4-75
60   111  2120.1017 53.0332.0 none  case gasket
61   222  2120.1016 56.0255.0  none  mount sleeve ∅8-10 x 30
62   100  0000.0000 49.0861.9 $0.80 case screw M6 x 20 allen black
62   011  2120.1040 00.0000.0 $0.80 case screw M6 x 20 slot
63   200  0000.0000 49.0867.9 $1.40 case screw M6 x 50 allen black
63   022  2120.1014 00.0000.0 1 -.70 case screw M6 x 50 slot
64   100  0000.0000 49.0869.9 --N/A- case screw M6 x 65 allen black
64   011  2120.1085 00.0000.0 $0.80 case screw M6 x 65 slot
65   400  0000.0000 49.0865.9 $1.20 case screw M6 x 40 allen black
65   044  2300.1079 00.0000.0 1 -.70 case screw M6 x 40 slot
66   300  0000.0000 49.0862.9 $0.80 case screw M6 x 25 allen black
66   033  2110.1081 00.0000.0 $0.70 case screw M6 x 25 slot
66a 5000000.0000 49.0863.9 $1.00 clutch screw M6 x 30 allen black
66a 055  2300.1121 00.0000.0 1 -.60 clutch screw M6 x 30 slot
67   111  2300.1083 53.0473.0 $1.00 drain plug gasket ∅8-16 x 1
68   111  2300.1082 49.0911.9 $2.00 drain plug M8 x 10 hex13
69   111  2120.1011 26.0188.0  none  oil splash plate
70   333  2300.1085 49.0629.9 $0.20 washer M4
71   333  2300.1086 49.0841.9 $0.50 screw M4 x 10 phil-wide
72   111  2120.1010 53.0352.0  none  clutch gasket oval 6-hole
73   111  2120.1009 21.0212.0  none  clutch cover 6-hole
75   111  2110.1082 53.0402.0  none  name plate gasket
76   011  2110.1083 00.0000.0  none  name plate “Indian”
77   222  2110.1084 49.0936.9 $0.90 name plate screw M4 x 12 phil-sunk
80   111  2300.1081 53.0401.0 $2.00 fill plug seal washer ∅12
81   111  2300.1080 24.0250.0 $8.00 fill plug
82   111  2120.1008 24.0153.0  none  wires grommet
83   333  0000.0000 49.0841.9 $0.50 stator screw M4 x 10 phil-wide
84   100  2000.1000 82.0012.9  none  magneto Ducati 31.02.30 ∅94
84   100  2000.1000 82.0014.9  none  magneto Ducati 31.02.39 ∅94
84   011  2110.1085 00.0000.0  none  magneto Ducati 31.02.38 ∅94
85   111  2300.1094 49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
87   111  2120.1005 21.0312.0  none  magneto cover
89   400  2000.1000 49.0509.0 $3.50 cylinder stud M6 x 109 (110)
89   044  2110.1124 49.0513.0 $3.50 cylinder stud M7 x 118
90   044  2300.1108 49.0604.9 $0.20 head washer M7
91   400  2000.1000 49.0304.9 $0.60 head nut M6 x 6
91   044  2300.1109 49.0306.9 $1.20 head nut M7 x 7
92   100  2000.1000 53.0302.0 none  base gasket ∅44 40×40
92   011  2110.1086 53.0306.0  none  base gasket ∅48 48×48
93   100  2000.1000 19.0306.0  none  cylinder 50cc ∅38.8-44 iron M32
93   010  2110.1087 00.0000.0  none  cylinder 70cc ∅45.0-47 aluminum
93   001  2110.1087 00.0000.0  none  cylinder 75cc ∅46.5-48 aluminum
94   100 2 000.1000 53.0417.0  none  head gasket ∅40-55 x 0.7
94   010  2110.1088 00.0000.0  none  head gasket ∅47-55 x 0.7?
94   001  2150.1012 00.0000.0  none  head gasket ∅48-55 x 0.7?
95   100  2000.1000 77.0152.0  none  head (testa) Sport QUADRO
95   100  2000.1000 77.0161.0  none  head (testa) Sport RECORD
95   011  2110.1089 00.0000.0  none  head 70-75cc
98   100  2110.1091 00.0000.0  none  intake gasket
99   100  2120.1003 00.0000.0  none  intake pipe
100 200  2110.1093 49.0304.9 $0.60 intake nut M6 x 6
101 100  2000.1000 15.0016.9  none  carb SHA 14/12 use 15.0024.9
101 100  2000.1000 15.0024.9 $70.0 carb Dellorto SHA 14/12 note 3
102 011  2110.1096 00.0000.0  none  exhaust flange
103 011  2110.1095 00.0000.0 $0.00 exhaust gasket
104 044  2110.1097 49.0631.9 $0.30 exhaust washer ∅6
105 044  2110.1098 49.0204.0 $0.00 exhaust nut M6 x 23
107 111  2110.1100 49.0922.0  none  bolt M12 x 26
108 111  2300.1114 53.0471.0  none  seal washer ∅12
147 111  2300.1151 49.0622.9 $1.00 flywheel washer M10 thin

Note 1. Indian Service Bulletin SVB-153: In March 1974 the flywheel key 2300.1024 changed  to 2301.1024, slightly shorter. That improved the seating (fit) of the flywheel, so it had less tendency of becoming loose and damaging the key and key groove.

Note 2: Indian Service Bulletin SVB-153: In March 1974 the pinion gear key 2110.1023 was eliminated. It is not needed as long as the pinion gear nut is tight. The key was on the ’67-70 P4S but was already eliminated on the ’71-75 P4V. That’s why there is only a 1960’s Minarelli part number for it.

Note 3. The genuine Dellorto SHA14/12 carburetor comes with a 52 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

P4V gears: P4V gears 1 to 4 had a 56 tooth total for each pair, 23+33, 27+29, 30+26, 33+23.

 

---

5. 1971-79 Minarelli P4E, P4E-al, P4A

P4E changes: The engine case changed from round to angular. The cylinder hole grew from ∅44 to ∅47. The cylinder studs grew from 40×40 to 48×48. This made room for bigger ports for more power, and made bigger bores 70 or 75cc possible, also for more power. The pork-chop all-needle-bearing P4V crankshaft became a full circle type. The exhaust bolts to the cylinder with a 3-bolt flange, instead of screwing on with a special inverted nut.

 ‘
1,2,3. ’71-79? P4E 49.6cc (38.8 x 42) Export in ghisa (iron)
4. ’78-79? Italjet CX50, 5. ’78-79? Italjet SX50

 ‘
1,2,3. ’71-79? P4E-al 49.6cc (38.8 x 42) Export in aluminio
flat top (testa piatta) piston, L-ring, 4. ’78-79 Italjet CX50R

1. ’71-79? P4A 49.6cc (38.8 x 42) P4V cases, covers
2. P4E, P4E-al, P4A parts list

 

PPa  figure Minarelli#  price  P is P4E, P is P4E-al, a is P4A
101 00015 15.0020.9 $70.0 carb SHA 14/12 note 1
010 00015 15.0029.9  none  carb Dellorto SHB 19/19D
100 00019 19.0314.0  none  cylinder iron ∅44 ∅32 3-bolt
010 00019 19.0002.0  none  cylinder alu. ∅47 ∅?? 4-bolt
001 00019 19.0306.0  none  cylinder iron ∅44 ∅32
001 00019 19.0315.0  none  cylinder iron ∅44 ∅28
111 00031 31.0010.6 $12.0 air cover F27 large sloping
101 00068 71.0410.0 none  piston kit 38.8 ball top
101 00068 71.0410.0 $60.0 piston kit 38.8 GOL 0034
010 00068 71.0413.0  none  piston kit flat top L-ring
010 00068 71.0463.7  none  piston kit flat top oversize
100 00077 77.0115.0  none  head (testa) EXPORT GHISA
010 00077 77.0110.0  none  head (testa) NORMALE
010 00077 77.0111.0  none  head (testa) SP bigger fins
001 00077 77.0152.0  none  head (testa) QUADRA SPORT
001 00077 77.0161.0  none  head (testa) RECORD SPORT
111 00082 82.0014.9  none  magneto Ducati 31.02.39 2-wire ⇐, ext. spark coil
110 00212 21.0232.0  none  clutch cover grey
110 00212 21.0233.0  none  clutch cover black
110 00214 21.0328.0  none  magneto cover grey
110 00214 21.0335.0  none  magneto cover black
111 00381 38.0037.0  none  crankshaft cone ∅15 full circle
101 00681 68.0115.0 $10.0 upper ring Ø38.8 x 1.5 GN
010 00681 68.0116.0 $11.0 upper ring Ø38.8 x 2.0 L
111 00681 68.0115.0 $10.0 lower ring Ø38.8 x 1.5 GN
110 00701 70.0116.0  none  right case ∅47 angular
001 00701 70.0110.0  none  right case ∅44 round
110 00702 70.0616.0  none  left case ∅47 angular
001 00702 70.0610.0  none  left case ∅44 round
111 00821 82.0006.6 $16.0 points (ruttore) CEV 04229 = M14
111 00823 82.0132.6 $13.0 condenser Ducati ∅17.9 = M17
111 05113 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
110 05320 53.0306.0 none  base gasket ∅47 48×48
001 05320 53.0302.0 none  base gasket ∅44 40×40
111 05670 56.0601.0 $9.50 piston pin Ø12.00 x 31.5
222 09323 03.0213.0 $1.50 piston pin clip  Ø12
100 49015 49.0124.8 $2.00 woodruff key (chiavetta) #M85 3.0 x 3.6
440 49037 49.0306.9 $1.20 head nut M7 x 7
100 49039 49.0310.0  none  pinion nut
100 49040 49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
100 49041 49.0313.9  none  sprocket nut
100 49042 49.0317.0  none  clutch nut M14-1.0
440 49084 49.0513.0 $3.50 cylinder stud 7 x 118.5 (120)
600 49226 49.0841.9 $0.50 stator screw M4 x 10 phil-wide

 

Note 1. The genuine Dellorto SHA14/12 carburetor comes with a 56 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

P4E gears: P4E gears 1 to 4 had a 43 or 44 tooth total for each pair, 10+33, 14+29, 18+26, 20+23.

 

---

6. 1972-81? Minarelli P4CS

 

Left, 1979? P4CS Compact System
Right, 1981 Testi Cricket 4M with P4CS

 

 

 

 

 

 

Crankshaft parts for all motors 1960’s – 70’s

 

 

 

Contents:

00 years  model  00  carb   covers    case
1952 part #’s, Fabbrica Bolognese Motocicli
01. ’54-56? P48 000 ∅12?  round♦   round♦
1956 part numbers, F. B. Minarelli
02. ’56-57? E48 000 ∅12?  round♦   round♦
03. ’57-68? P3 0000 ∅12    round♦   round♦
03. ’60-68? P3 Sport ∅15    round♦   round♦
1967 part numbers, Motori Minarelli
04. ’67-70? P3N 000 ∅12   round♦   round♦
1970 part numbers
05. ’68-74   P3S 000 ∅12 angular♦   round♦
07. ’75-86? P3S 000 ∅12 angular♦   round♦

 

---

---

1. F.B.M. P48 1954-56

This had one speed, manual clutch with pedals. The design is based on a 1950’s Sachs moped engine. 

In 1956 Fabbrica Bolognese Motocicli split into F.B. Minarelli and Motori Franco Morini.

 

---

---

2. Minarelli E48 1956-57

This had a two-speed cable-shift, manual clutch. It is basically a P3 with one gear missing.

The new F.B. Minarelli logo was a triangle with wings. This was stamped or cast onto most of the engine parts. 1970’s and 80’s Motori Minarelli parts with this logo were originally on a 1960’s F.B. Minarelli model. 

 

---

---

3. Minarelli P3, P3-KS 1957-68? 

This was a 3-speed hand-grip-shift, manual clutch, with pedals or with kick start. There were two head versions, with a motor mount and without. 

’57?-68? Minarelli P3 (ovalino) 47.7 cc (38.0 x 42)
1956# Minarelli# qty MMI# price  description.
0 A1-25 49.0124.8 1 4730 $2.00 flywheel key #M85 3.0 x 3.6
0 A1-27 49.0841.9 3 4740 $0.50 stator screw M4 x 10 phil-wide
00 A2-1 38.0000.0 1 0000  none  crankshaft P3 pork chop, loose rollers
00 A2-1 38.0017.0 1 0000  none  (rod end Ø14.95 x 13 for bushing)
00 A2-2 00.0000.0 1 0000  none  right crank half P3
00 A2-3 00.0000.0 1 0000  none  left crank half P3
00 A2-4 00.0000.0 1 0000  none  crank pin P3
00 A2-5 00.0000.0 1 0000  none  connecting rod P3
00 A2-6 00.0000. 24 0000  none  roller Ø2.5 x 9.8
00 A2-7 00.0000.0 2 0000  none  rod washer
00 A2-8 51.0132.7 1 4470 $5.00 piston pin bushing ∅11.7 ∅15 x 13
00 A2-8 51.0132.7 1 4470  none  (must be reamed after installation)
00 A2-9 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
0 A2-10 03.0213.0 2 4490 $1.50 piston pin clip  Ø12
0 A2-11 71.0405.0 1 4500 $65.0 piston kit 38.0 dome top, 2.5 rings
0 A2-11 71.0455.7 1 4520 $65.0 piston kit 38.4 2nd oversize
0 A2-12 68.0000.0 2 0000 $11.0 piston ring each 38.0 x 2.5 GN
0 A2-12 71.0802.0 1 4600  none  piston ring set
0 A2-14 00.0000.0 1 0000  none  pinion washer
0 A2-15 00.0000.0 1 0000  none  pinion nut (dado)
0 A2-16 49.0124.8 1 4720  none  key 3.0 x 3.7  use A1-25 #M85
0 A2-17 49.0000.0 1 0000  none  flywheel nut M10-1.25 use #4750
0 A2-17 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
0 A2-18 00.0000.0 1 0000  none  flywheel washer Ø10 (eliminated)
0 A2-19 51.0203.9 3 4770 $10.0 crank/trans bearing 15-35-11 #6202
0 A2-20 53.0506.9 1 4710 none  left crank seal 17-35-8
0 A2-21 53.0503.9 1 0000  none  right crank seal 15-30-8 use 15-30-7
0 A2-21 49.0000.0 1 0000 $7.00 right crank seal 15-30-7
0 C1-15 00.0000.0 1 0000  none  clutch nut
0 C1-16 00.0000.0 1 0000  none  washer ∅13
0 C1-17 51.0205.9 1 4700 $10.0 left crank bearing 17-40-12 #6302
0 C1-23 00.0000.0 2 0000  none  washer ∅12.5
00 C2-8 00.0000.0 1 0000  none  driveshaft circlip external
00 C2-9 00.0000.0 3 0000  none  driveshaft washer ∅15
0 C2-10 00.0000.0 1 0000  none  gear shaft clip
0 C2-11 00.0000.0 1 0000$6.00 driveshaft seal 15-24-7 use 15-24-5
0 C2-11 53.0502.9 1 4790 $6.00 P2-12 seal 15-24-5
 C14-18 00.0000.0 1 0000  none  sprocket cone-keyed
00 F5-6 65.0133.0 1 5160 $8.00 start cable stop bridge
00M2-5 19.0315.0 1 0000  none  cylinder iron 38.0 exhaust M28
0M2-10 53.0302.0 1 0000 none  base gasket ∅44 40×40
0M2-13 49.0509.0 4 0000 $3.50 cylinder stud M6 x 109 (110)
0M2-18 15.0000.0 1 0000  none  carburetor Dellorto ME series, maybe 12
0M2-19 82.0000.9 1 0000  none  magneto ⇐ CEV 6067 ∅94 o♦♦ 6V
0 P2-12 53.0502.9 2 4790 $6.00 pedal shaft seal 15-24-5

’60?-68? Minarelli P3 (40 km/h)  parts different from P3
1956# Minarelli# qty MMI# price  description.
0 A2-22 00.0000.0 1 0000  none  piston 38.0 (40km)

’60?-68? Minarelli P3 Sport        parts different from P3
1956# Minarelli# qty MMI# price  description.
0 A20-1 00.0000.0 1 0000  none  crankshaft, bigger rollers
0 A20-2 00.0000.0 1 0000  none  right crank half
0 A20-3 00.0000.0 1 0000  none  left crank half
0 A20-4 00.0000.0 1 0000  none  crank pin
0 A20-5 00.0000.0 1 0000  none  connecting rod
0 A20-6 00.0000. 17 0000  none  roller Ø4.0 x 10
0 A20-7 00.0000.0 2 0000  none  rod washer
0 A20-8 00.0000.0 1 0000  none  piston 38.0
0 A20-9 00.0000.0 1 0000  none  cylinder iron 38.0 exhaust M32
 A20-10 00.0000.0 1 0000  none  head
 A20-11 00.0000.0 1 0000  none  head
 A20-12 00.0000.0 1 0000  none  intake pipe
 A20-13 00.0000.0 1 0000  none  intake gasket
 A20-14 00.0000.0 1 0000  none  carburetor Dellorto UA15-S

 

 

 

 

 

 

 

 

 

 

 

---

---

6. Minarelli P3N 1967-70

’67?-70? Minarelli P3N (ovalino) 47.7 cc (38.0 x 42)
1967# Minarelli# qty MMI# price  description.
012058 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
012059 03.0213.0 2 4490 $1.00 piston pin clip  Ø12
012067 51.0132.7 1 4470 $5.00 piston pin bushing ∅11.7 ∅15 x 13
012067 51.0132.7 1 4470  none  (must be reamed after installation)
102002 00.0000.0 1 0000  none  head small rounded
102003 19.0315.0 1 0000  none  cylinder iron 38.0 exhaust M28
102015 71.0405.0 1 4500 $65.0 piston kit 38.0 dome top, 2.5 rings
102015 71.0455.7 1 4520 $65.0 piston kit 38.4 2nd oversize
102020 00.0000.0 2 0000 $11.0 piston ring each 38.0 x 2.5 GN
102020 71.0802.0 1 4600  none  piston ring set
102055 53.0502.9 2 4790 $6.00 pedal shaft seal 15-24-5
112085 53.0503.9 1 0000 none  right crank seal 15-30-8 use 15-30-7
112085 53.0503.9 1 0000 $7.00 right crank seal 15-30-7
162010 49.0509.0 4 0000 $3.50 cylinder stud M6 x 109 (110)
162011 49.0304.9 4 0000 $0.60 head nut M6 x 6
162012 49.0603.9 4 0000 $0.20 head washer ∅6
162029 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
162113 49.0323.0 1 4840 $2.50 sprocket nut M10x1.25 x 6 hex17
162174 53.0302.0 1 0000 none  base gasket ∅44 40×40
162181 53.0506.9 2 4710 none  left crank seal 17-35-8 use 17-35-7
162181 53.0506.9 2 4710 $7.50 crankshaft seal 17-35-7
162190 51.0205.9 1 4700 $10.0 left crank bearing 17-40-12 #6302
162191 51.0203.9 1 4770 $10.0 right crank bearing 15-35-11 #6202
812204 00.0000.0 1 0000  none  carb Dellorto SHA
912201 00.0000.0 1 0000  none  magneto 6V 18w internal spark

 

 
Left, 1971 Minarelli P3N, W3, W3-QM owners manual
Right, 1968 Cimatti Milord 48 with Minarelli P3N engine

P3N changes: The crankshaft rod bearing changed from loose rollers to caged rollers. The motor mount on the head was eliminated. The sprocket changed from cone-keyed center to round with flat sides.

 

 

 

---

---

7. Minarelli P3S, P3S-KS 1970-86?

’70?-86? Minarelli P3S  49.6 cc (38.8 x 42)
figure Minarelli# qty MMI# price  description.
00  15 15.0020.9 1 0000  none  carb SHA14/12 jet 56 F27 use 15.0024.9
00  15 15.0024.9 1 5650 $70.0 SHA14/12 jet 56
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486/56 main jet #56
15170 15.0490.6 1 6430 $2.00 6123 float gasket
15255 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
15300 15.0701.6 1 6550 $10.0 2838 float needle
15000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
00019 19.0315.0 1 0000  none  cylinder ∅38.8 M28  Sport Quadro
00031 31.0010.7 1 0000 $12.0 air cover F27 no inlet tubes
00068 71.0410.0 1 4540 none  piston kit 38.8 ball top
00068 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
00068 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00068 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
00068 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0152.0 1 0000  none  head (testa) Sport QUADRO
00082 82.0007.9 1 0000  none  magneto CEV 6925 0000  ∅94 o♦♦
00082 82.0012.9 1 0000  none  magneto Ducati 31.02.30 ∅94   ♦♦
00082 82.0028.9 1 0000  none  magneto CEV 6925E 000  ∅94   ♦♦
00681 68.0115.0 2 0000 $10.0 piston ring Ø38.8 x 1.5 GN
00681 71.0805.0 1 4640  none  piston ring set
05113 51.0301.9 1 4475 $9.00 piston bearing Ø12 Ø15 x 15
05320 53.0302.0 1 0000 none  base gasket ∅44 40×40
05372 53.0502.9 2 4790 $6.00 pedal shaft seal 15-24-5
05373 53.0503.9 1 0000 none  right crank seal 15-30-8 use 15-30-7
05373 53.0503.9 1 0000 $7.00 right crank seal 15-30-7
05376 53.0506.9 1 4710 none  left crank seal   17-35-8 use 17-35-7
05376 53.0506.9 1 4710 $7.50 left crank seal   17-35-7
05615 56.0255.0 3 5240 $10.0 dowel Ø10/8 x 30 (cut from a 40)
05670 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
09323 03.0213.0 2 4490 $1.50 piston pin clip  Ø12
49005 49.0018.0 1 5880 $4.00 air cover clamp with screw
49036 49.0304.9 4 0000 $0.60 head nut M6 x 6
49039 49.0039.9 1 0000  none  pinion nut
49040 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
49041 49.0323.0 1 4840 $2.50 sprocket nut M10x1.25 x 6 hex17
49084 49.0509.0 4 0000 $3.50 cylinder stud M6 x 109 (110)
49015 49.0124.8 1 4720  none  key 3.0 x 3.7 x 9.6 CEV, Ducati use M85
49015 49.0125.8 1 4730 $2.00 key 3.0 x 3.6 x 9.5 M85 for Bosch
49226 49.0841.9 6 0000 $0.50 stator screw M4 x 10 phil-wide

P3S changes: The bore increased from 38.0 to 38.8. So the cylinder and piston changed. The piston pin bushing changed to a needle bearing. So the crankshaft rod changed from bushing to bearing type. The small round head fins became large straight fins. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1978-80 Motron moped cables:

$10    33 x 47″ throttle cable
$10    39 x 44″ front brake
$10    60 x 65″ rear brake
$10    43 x 47″ start/clutch

 

 

 

Cosmopolitan Motors: Benelli mopeds and motorcycles were imported to the USA from about 1965 to 1988 by Cosmopolitan Motors in Hatboro PA. Cosmo sold the Automatic, Maverick, 3FA, Blazer, G2 and C2 pedal-start mopeds, and the 3VK kick-start moped. They also sold many different Benelli mini cycles and trail bikes, plus Benelli 250 twin, 250 and 500cc 4-cylinder, 750 and 900cc 6-cylinder sport motorcycles.

 

J.C. Penney: In the late 1960’s and early 70’s JC Penney department stores sold Benelli Buzzer, Dynamo, Hurricane, Volcano mini-cycles and Cougar trail bike in their auto centers.

 

Montgomery Ward: The Wards department store line was named “Riverside”. The earliest Wards Riverside models were scooters made by Japan’s Mitsubishi and Italy’s Bianchi companies, and mopeds made by France’s Motobecane. Those pre-1965 France-made Wards Riverside mopeds are completely different from the 1965-67 Benelli-made Wards Riverside mopeds.

 

Wards Riverside Benelli: In 1965, Wards changed manufacturers and opted to sell mostly machines from the Italian company Benelli. Benelli offered mopeds and a line of single cylinder motorcycles 50-360cc. The Benelli line plus a Lambretta scooter allowed Wards to compete in the marketplace with the Austrian Puch mopeds and motorcycles that Sears was selling under their Allstate brand.

By 1970 the moped and motorcycle sales went away for the department store retailers, and for European manufacturers in general, primarily due to the Japanese invasion with highly engineered, reliable and powerful 4 stroke motorcycles under the likes of Honda, Yamaha and Suzuki. Also, in 1970 the US Environmental Protection Agency (EPA) was created to oversee and combat increasing pollution and air quality issues. Smokey two stroke motorcycles and other high emission vehicles would be the first targets.

 

Benelli Motorcycles USA 1965 to 2008

Here are the Benelli motorcycles sold in the USA, with specs from motorcyclespecs.co.za.
Wards Riverside models are included. More info is at Brands/Italy/Wards Riverside.
Over-65cc are colored light grey, 50-65cc are dark blue, 50cc mopeds are red.

---

1965

Benelli    model name xxxxx size  engine 000  front  tires  rear
Benelli 50 Fireball 50mph x   49cc 4MS2T50/1 2.25-18 2.25-18
Benelli 125 Monaco scooter 124cc 3V2T125/1  2.50-16 2.50-16
Benelli 125 Cobra 68mph    124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 Sprite  xxxxxxx 124cc 4M4T125/1 3.00-18 3.25-18
Benelli 200 Sprite xxxxxxx  198cc 4M4T200/1 3.00-18 3.25-18

Riverside 250-D long seat     49cc FA2T50/1   2.25-18 2.25-18
Riverside 350-S scooter xx   49cc 3VK2T50/1 2.25-16 2.25-16
Riverside 450-SS sport bike 49cc 4MS2T50/1 2.25-18 2.25-18
Riverside 125 Lightweight  124cc 4M2T125/1 2.75-18 3.00-18
Riverside 125 Scrambler x  124cc 4M2T125/1 2.75-18 3.00-18

 

 

 

---

1966

Benelli    model name xxxxx size  engine 000  front  tires  rear
Benelli 50 Fireball 4.5hp xx  49cc 4MS2T50/1 2.25-18 2.25-18
Benelli 125 Monaco scooter 125cc 3V2T125/1 2.50-16 2.50-16/1 0.00-00
Benelli 125 Cobra  xxxxxx  124cc 4M2T125/1 2.75-18 3.00-18 0.00-00
Benelli 125 Cob. Scrambler 124cc 4M2T125/1 2.75-18 3.00-180.00-00
Benelli 200 Sprite  xxxxxx  198cc 4M4T200/1 3.00-18 3.25-18
Riverside 250-D long seat     49cc FA2T50/1   2.25-18 2.25-18
Riverside 350-S scooter xx   49cc 3VK2T50/1 2.25-16 2.25-16
Riverside 450-SS sport bike 49cc 4MS2T50/1 2.25-18 2.25-18
Riverside 125 Lightweight  124cc 4M2T125/1 2.75-18 3.00-18
Riverside 175 Lightweight  170cc 4M2T175/1 2.75-18 3.00-18
Riverside 125 Scrambler    124cc 4M2T125/1 2.75-18 3.00-18
Riverside 175 Scrambler    170cc 4M2T175/1 2.75-18 3.00-18
Riverside 250 Mojave  x     245cc 4M4T250/1 3.00-18 3.25-18

 

---

1967

Benelli    model name xxxx  size  engine 000  front  tires  rear
Benelli 50 Automatic  xxxx   49cc GM2T50/1  2.25-16 2.25-16
Benelli 50 Dynamo Compact 49cc 4M2T50/    3.50-8   3.50-8
Benelli 50 Fireball  xxxxxxx  49cc 4MS2T50/1 2.25-18 2.25-18
Benelli 50 Fireball Trail  xxx  49cc 4MS2T50/1 2.50-19 2.75-17?
Benelli 125 Cobra  xxxxxx  124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 Cobra Trail  xx  124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 Sprite  xxxxxx  124cc 4M4T125/1 2.75-18 2.75-18
Benelli 200 Sprite  xxxxxx  198cc 4M4T200/1 3.00-18 3.25-18
Benelli 250 Barracuda  xx   245cc 4M4T250/1 3.00-18 3.25-18

 

Riverside 150-D solo seat    49cc FA2T50/1   2.25-18 2.25-18
Riverside 250-D long seat    49cc FA2T50/1   2.25-18 2.25-18
Riverside 350-S scooter xx  49cc 3VK2T50/1 2.25-16 2.25-16
Riverside 450-SS sport bike 49cc 4MS2T50/1 2.25-18 2.25-18
Riverside 125 Lightweight  124cc 4M2T125/1 2.75-18 3.00-18
Riverside 175 Lightweight  170cc 4M2T175/1 2.75-18 3.00-18
Riverside 125 Scrambler    124cc 4M2T125/1 2.75-18 3.00-18
Riverside 175 Scrambler    170cc 4M2T175/1 2.75-18 3.00-18
Riverside 250 Mojave  x     245cc 4M4T250/1 3.00-18 3.25-18

 

---

1968

Benelli    model name xxxxxx  size  engine 000  front  tires  rear
Benelli 50 Dynamo Compact   49cc 4M2T50/1   3.50-8   3.50-8
Benelli 50 Fireball xxxxxxxxx  49cc 4MS2T50/1 2.25-18 2.25-18
Benelli 50 Fireball Trail xxxxx  49cc 4MS2T50/1 2.50-19 2.75-17?
Benelli 125 Cobra xxxxxxxx  124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 Cobra Scrambler 124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 Sprite xxxxxxxx  124cc 4M4T125/1 2.75-18 2.75-18

Benelli 125 Sprite California  124cc 5M4T125/1 2.75-18 2.75-18
Benelli 250 Barracuda xxxx   245cc 4M4T250/1 3.00-18 3.25-18
Benelli 250 Barracuda Calif.   245cc 5M4T250/1 3.00-18 3.25-18
Benelli 650 Tornado xxxxxx   643cc 5M4T650/2 3.50-18 4.00-18
Riverside 450-SS sport bike  49cc 4MS2T50/1   2.25-18 2.25-18
Riverside 125 Lightweight x  124cc 4M2T125/1 2.75-18 3.00-18
Riverside 260 Mojave xxx     245cc 4M4T260/1 3.00-18 3.25-18
Riverside 360 Mojave xxx     356cc 4M4T360/1 3.00-18 3.25-18

        Late 1968, Sprite and Barracuda renamed to El Diablo.
Benelli 125 El Diablo  xxxxx 124cc 4M4T125/1 2.75-18 3.00-18?
Benelli 125 El Diablo  xxxxx 124cc 5M4T125/1 2.75-18 3.00-18?
Benelli 200 El Diablo  xxxxx 198cc 4M4T200/1 3.00-18 3.25-18
Benelli 250 El Diablo  xxxxx 245cc 4M4T250/1 3.00-18 3.25-18
Benelli 250 El Diablo  xxxxx 245cc 5M4T250/1 3.00-18 3.25-18

 

 

 

 

 

 

 

 

---

1969

Benelli    model name xxxx  size  engine 000  front  tires  rear
Benelli 50 Buzzer xxxxxxxx  49cc GK2T50/1   3.00-5   3.50-5
Benelli 50 Dynamo Compact 49cc 4M2T50/1   3.50-8   3.50-8
Benelli 50 Dynamo Trail   xx 49cc 4MS2T50/1 3.00-10 3.00-10
Benelli 65 Hornet  xxxxxxxx 59cc GK652T/1    2.75-9   2.75-9
Benelli 50 Super Mini xxxxx 49cc 4MS2T50/1 2.25-14 2.50-14?
Benelli 50 Maverick, xxxxxx 49cc GM2T50/1   2.25-16 2.25-16
Benelli 125 Cobra xxxxxxx 124cc 4M2T125/1 2.75-18 3.00-18
Benelli 125 El Diablo  xxxx 124cc 4M4T125/1 2.75-18 3.00-18?

Benelli 125 El Diablo  xxxx 124cc 5M4T125/1 2.75-18 3.00-18?
Benelli 200 El Diablo xxxx  198cc 4M4T200/1 3.00-18 3.25-18
Benelli 250 El Diablo  xxxx 245cc 4M4T250/1 3.00-18 3.25-18
Benelli 250 El Diablo  xxxx 245cc 5M4T250/1 3.00-18 3.25-18
Benelli 650 Tornado xxxx   643cc 5M4T650/2 3.50-18 4.00-18
Riverside 125 Lightweight  124cc 4M2T125/1 2.75-18 3.00-18
Riverside 260 Mojave xx    245cc 4M4T260/1 3.00-18 3.25-18
Riverside 360 Mojave xx    356cc 4M4T360/1 3.00-18 3.25-18

 

 

 

 

 

 

 

 

---

1970

Benelli    model name xx size  engine  000 front  tires  rear
Benelli 65 Buzzer xxxxxx 59cc GK652T/1  3.00-5   3.50-5
Benelli 65 Buzzer Junior  59cc GK652T/1   3.00-5   3.50-5
Benelli 65 Hornet xxxxx  59cc GK652T/1   2.75-9   2.75-9
Benelli 65 Dynamo Trail   59cc 4M652T/1   3.00-10 3.00-10
Benelli 65 Dyn. Compact 59cc 4M652T/1   3.50-8   3.50-8
Benelli 65 Woods Bike x  59cc 4M652T/1   3.00-10 3.00-10
Benelli 65 Cougar xxxxx  59cc 4M652T/1   2.50-18 2.75-17 

Benelli 180 Volcano  xxx170cc 4M2T175/1 3.00-10 3.00-10
Benelli 125 Cobra Trail   124cc 4M2T125/1 2.75-19 3.00-18?
Benelli 125 Sprite xxxx  124cc 5M4T125/1 2.75-18 2.75-18
Benelli 200 El Diablo xx 198cc 4M4T200/1 3.00-18 3.25-18
Benelli 250 Super Sport 245cc 4M4T250/1 3.00-18 3.25-18
Benelli 650 Tornado xx  643cc 5M4T650/2 3.50-18 4.00-18

In late 1970 the El Diablo name went back to Sprite.

 

 

 

 

 

 

 

---

1971

Benelli    model name xx size  engine  000 front  tires  rear
Benelli 65 Buzzer  xxxx  59cc GK652T/1  3.00-5   3.50-5
Benelli 65 Buzzer Jr xxx 59cc GK652T/1  3.00-5   3.50-5
Benelli 65 Hornet  xxx x 59cc GK652T/1  2.75-9   2.75-9
Benelli 65 Hurricane   x  59cc GK652T/1  3.50-7   3.50-7
Benelli 65 Dynamo Trail  59cc 4M652T/1  3.00-10 3.00-10
Benelli 65 Woodsbike x  59cc 4M652T/1  3.00-10 3.00-10
Benelli 65 D. Compact    59cc 4M652T/1  3.50-8   3.50-8
Benelli 65 Mini Enduro   59cc 4M652T/1  2.50-14 2.75-14?

Benelli 65 Cougar xxxx  59cc 4M652T/1  2.50-18 2.75-17 
Benelli 180 Volcano x   170cc 4M2T175/1 3.00-10 3.00-10
Benelli 125 Cobra Trail 124cc 4M2T125/1 2.75-19 3.00-18?
Benelli 175 Enduro  xx 170cc 4M2T175/1 2.75-19 3.00-18?
Benelli 250 Supersport 245cc 5M4T250/1 3.00-18 3.25-18
Benelli 650 Tornado     643cc 5M4T650/2 3.50-18 4.00-18

 

 

 

 

 

 

 

---

1972

Benelli    model name xx size  engine  000 front  tires  rear
Benelli 65 Buzzer  xx    59cc GK652T/1  3.00-5   3.50-5
Benelli 65 Buzzer Jr      59cc GK652T/1  3.00-5   3.50-5
Benelli 65 Dynamo II    59cc 4M652T/1  3.00-10 3.00-10
Benelli 65 Compact II   59cc 4M652T/1  3.50-8   3.50-8
Benelli 65 Woods II      59cc 4M652T/1  3.00-10 3.00-10
Benelli 65 Hurricane     59cc GK652T/1  3.50-7   3.50-7
Benelli 65 Mini Enduro  59cc 4M652T/1  2.50-14 2.75-14?
Benelli 65 Cougar xxxx 59cc 4M652T/1  2.50-18 2.75-17
Benelli 180 Volcano     170cc 4M2T175/1 3.00-10 3.00-10

Benelli 175 Enduro  xx 170cc 4M2T175/1 2.75-19 3.00-18?
Benelli 250 Supersport 245cc 5M4T250/1 3.00-18 3.25-18
Benelli 650 Tornado     643cc 5M4T650/2 3.50-18 4.00-18

In 1972 the Dynamo gas tank and seat were improved
with a better appearance, making it blend in to the seat. 

The 1972 Volcano shown was restored by C. Smolen
It’s a 175cc 4-spd, 14hp, 65mph. Only 200 were made.

 

 

 

 

---

1973

Benelli    model name xx size  engine  000 front  tires  rear
Benelli 65 Buzzer xxxxx 59cc GK652T/1 3.00-5   3.50-5
Benelli 65 Dynamo II x  59cc 4M652T/1 3.00-10 3.00-10
Benelli 65 Mini Enduro   59cc 4M652T/1 2.50-14 2.75-14?
Benelli 90 Banshee xxx 89cc 5M2T90/1 2.75-18 3.00-18?
Benelli 125 Panther xx 124cc 5M2T125/1 2.50-21 3.80-18
Benelli 250 Phantom x 231cc 5M2T250/2 3.00-18 3.25-18
Benelli 650 Tornado  x 643cc 5M4T650/2 3.50-18 4.00-18

 

 

---

1974

Benelli    model name xx size  engine  000 front  tires  rear
Benelli Moped 3FA  xxx   49cc FA2T50/1   2.25-16 2.25-16
Benelli Moped 3VK  xxx  49cc 3VK2T50/1 2.25-16 2.25-16
Benelli 65 Dynamo Trail  59cc 4M652T/1  3.00-10 3.00-10
Benelli 90 Banshee  xxx  89cc 5M2T90/1 2.75-18 3.00-18?
Benelli 125 Panther xx 124cc 5M2T125/1 2.50-21 3.80-18

Benelli 250 Phantom x 231cc 5M2T250/2 3.00-18 3.25-18 30hp 100mph
Benelli 650 Tornado  x 643cc 5M4T650/2 3.50-18 4.00-18

 

 

 

 

 

 

---

1975

Benelli    model name xx size  engine  000 front  tires  rear
Benelli Moped 3FA  xxx   49cc FA2T50/1   2.25-16 2.25-16
Benelli Moped 3VK  xxx  49cc 3VK2T50/1 2.25-16 2.25-16
Benelli 65 Dynamo Trail  59cc 4M652T/1  3.00-10 3.00-10
Benelli 90 Banshee  xxx  89cc 5M2T90/1 2.75-18 3.00-18?
Benelli 250 Phantom  x 231cc 5M2T250/2 3.00-18 3.25-18
Benelli 500 Quattro  xx 499cc 5M4T500/4 3.25-18 4.10-18

In 1975, the Dynamo II went back to being called Dynamo Trail.

 

 

---

1976

Benelli     model name xx size  engine  000 front  tires  rear
Benelli 50 Blazer xxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 50 Sprint xxxxxxx 49cc 5MS2T50/1 2.25-18 2.25-18
Benelli 65 Dynamoxxxxx  59cc 4M652T/1  3.00-10 3.00-10

Benelli 90 Banshee xxxx   89cc 5M2T90/1 2.75-18 3.00-18?
Benelli 250 Phantom xx  231cc 5M2T250/2 3.00-18 3.25-18
Benelli 500 Quattro xxx  499cc 5M4T500/4 3.25-18 4.10-18
Benelli 750 Sei xxxxxxx  747cc 5M4T750/6 3.25-18 4.10-18

 

---

1977

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 Blazer xxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 65 Dynamo xxxx  59cc 4M652T/1  3.00-10 3.00-10
Benelli 250 Phantom xx  231cc 5M2T250/2 2.75-18 3.00-18
Benelli 500 Quattro xxx  499cc 5M4T500/4 3.25-18 4.10-18
Benelli 650 Tornado xxx  643cc 5M4T650/2 3.50-18 4.00-18
Benelli 750 Sei xxxxxxx  747cc 5M4T750/6 3.25-18 4.10-18

 

 

 

---

1978

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 G2 xxxxxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 250 Phantom xx  231cc 5M2T250/2 2.75-18 3.00-18
Benelli 500 Quattro xxx  499cc 5M4T500/4 3.25-18 4.10-18
Benelli 750 Sei xxxxxxx  747cc 5M4T750/6 3.25-18 4.10-18
Moto Guzzi 50 Robin xxx 49cc G22T50/1   2.25-16 2.25-16

 

 

 

 

 

 

---

1979

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 G2 xxxxxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 250 Phantom xx  231cc 5M2T250/2 2.75-18 3.00-18
Benelli 504 Sport xxxxx  499cc 5M4T500/4 3.25-18 4.10-18
Benelli 750 Sei xxxxxxx  747cc 5M4T750/6 100/90-18 120/90-18
Benelli 900 Sei xxxxxxx 906cc 5M4T900/6 100/90-18 120/90-18
Moto Guzzi 50 Robin xxx 49cc G22T50/1   2.25-16 2.25-16

In 1979 the 500 Quattro got a disc brake, mag wheels, and was renamed 504 Sport

---

1980

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 G2 xxxxxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 504 Sport xxxxx  499cc 5M4T500/4 3.00S18 3.50S18
Benelli 900 Sei xxxxxxx  906cc 5M4T900/6 100/90-18 120/90-18
Moto Guzzi 50 Robin xxx 49cc G22T50/1   2.25-16 2.25-16

 

 

---

1981

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 G2 xxxxxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 50 C2 long seat xx 49cc G22T50/1   2.25-16 2.25-16
Benelli 254 Quattro xxx  231cc 5M4T250/4 2.75-18 3.00-18
Benelli 504 Sport xxxxx  499cc 5M4T500/4 3.00S18 3.50S18
Benelli 900 Sei xxxxxxx  906cc 5M4T900/6 100/90-18 120/90-18

 

 

---

1982 to 1985

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 50 G2 xxxxxxxxxx 49cc G22T50/1   2.25-16 2.25-16
Benelli 50 C2 long seat xx 49cc G22T50/1   2.25-16 2.25-16
Benelli 900 Sei xxxxxxx 906cc 5M4T900/6 100/90-18 120/90-18

After 1982, two-stroke on-road over-50cc new motorcycle sales were not allowed in the US. 

 

 

---

1986 to 1988

Benelli    model name xxxsize  engine  000 front  tires  rear
Benelli 900 Sei xxxxxxx 906cc 5M4T900/6 100/90-18 120/90-18

 

 

 

---

1989 to 1999

No USA models

---

2000 to 2007

Benelli    model name xxx  size  engine  000 front  tires  rear
Benelli 900S Tornado Tre  898cc 6M4T900/3 120/70-17 190/50-17

During the ten years of Benelli absence in the USA, motorcycle technology improved. The 1988 Sei 900 had 80hp, while the 2000 Tornado 900 had 140hp, 75% more powerful, despite having half as many cylinders! 

 

---

2008

Benelli    model name xxxxxx xxx xxx xxxx size  engine  000 front  tires  rear
Benelli 900 Tornado Naked Tre xxxxxxxx     898cc 6M4T1130/3 120/70-17 180/55-17
Benelli 1130 Tornado Tre xxxxxx xxxx xxx 1131cc 6M4T1130/3 120/70-17 190/50-17
Benelli 1130 Tre K Totnadoxxxx xxx xxxxx 1131cc 6M4T1130/3 120/70-17 180/55-17
Benelli 1130 Tornado Naked Tre Sport Evo 1131cc 6M4T1130/3 120/70-17 180/55-17 or 200/55-17

The 2009 and all other years Benelli USA models and specs can be viewed at totalmotorcycle.com.

 

 

 

For models with engines 4M, 4MS, and 4M65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mobylette Mopeds (Motobecane or Motoconfort)

After World War Two, many airports, rail roads, roads, power plants, pipelines, refineries and factories of Europe were damaged from bombs. So travel was mostly limited to bicycles. A bicycle was light enough to carry across a stream, or over a pile of rocks. But there was a need for long distance mobility, so the motorized bicycle (moped), originally the first motorcycles of the 1890’s-1900’s, was re-born in Europe after WWII. The first Mobylette (little mobility) was the French-made 1949 Motobecane AV3.  

1949-51 AV3   Mobylette
bicycle style tube frame and fork, 600x50B tires (20″ rims)
one speed motor

1951-54 AV31  Mobylette
bicycle style tube frame and fork, 600x50B tires (20″ rims)
one speed motor

1952-54 AV32  Mobylette
bicycle style tube frame and fork, 600x50B tires (20″ rims)
one speed motor

1955-56 AV37   Mobylette Mobymatic Luxe
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
AV35 automatic clutch motor,

1955-56 AV36  Mobylette Mobymatic Standard
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
AV35 automatic clutch motor,

1955-56 AV33  Mobylette Super Standard
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed motor

1955-56 AV32M Mobylette Utilitaire
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed motor

1955-56 AV32S  Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor

1955-56 AV31  Mobylette Luxe
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
one speed motor

 

1956-57 AV79B Mobylette
“70” sheet frame w/tank
telescopic fork, 23 x 2 (19″ rims)
variator motor
early USA model ?

Floyd Clymer would later go on to produce automotive service manuals, familiar to most home mechanics. Here he is before that, when he was editor of Cycle magazine, in Jan 1956 walking his dog with a Mobylette. Mr. Clymer was so impressed with his French freedom, that he wrote this Mobylette Report, to inform American motorcyclists. 

 

1956-57 AU78   Mobylette Superluxe
“70” sheet frame w/tank, telescopic fork, 23 x 2 (19″ rims)
variator motor
1956-57 AU75   Mobylette Monoluxe
“70” sheet frame w/tank, telescopic fork, 23 x 2 (19″ rims)
one speed motor
1957-58 AU47   Mobylette Mobymatic Standard
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
variator motor dual auto clutch (Dimoby)
1957-58 AU34   Mobylette Grand Luxe
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
one speed motor
1957-58 AU54   Mobylette Super Telescopique
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
one speed motor
1957-58 AU33  Mobylette Super Standard
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed motor
1957-58 AU32M Mobylette Utilitaire
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed motor
1957-58 AU32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1957-58 AU51   Mobylette Utilitaire Telescopique
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
one speed motor

 

1959 AV33   Mobylette Super Standard
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed dual auto clutch (Dimoby)
1959 AV54   Mobylette Super Telescopique
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed dual auto clutch (Dimoby)
1959 BG     Mobylette Courroie-Galet
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 Dbg motor, friction drive
1959 AV32M Mobylette Utilitaire
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
one speed motor
1959 AV32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1959 AV51 Mobylette Utilitaire Telescopique
bicycle style tube frame, telescoping fork, 600x50B (20″ rims)
one speed motor

 

1960 AV32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1960 AV32E Mobylette Service Dimoby
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 D motor
1960 BG     Mobylette Courroie-Galet
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 Dbg motor,  friction drive
1960 AV44 Mobylette Standard Telescopique
“early 40″ sheet frame, telescopic fork, 23 x 2 tires (19” rims)
AV7 Dbe motor

 

 

 

1961 AV32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1961 BG43   Mobylette Courroie-Galet
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Dbg motor,  friction drive
1961 BG43T Mobylette Courroie-Galet
sheet frame, rear tank, telescopic fork, 23 x 2 tires (19″ rims)
AV7 Dbg motor,  friction drive
1961 AV43   Mobylette Standard
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor
1961 AV43T Mobylette Standard
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor
1961 AV44   Mobylette Standard Telescopique
sheet frame, rear tank, telescopic fork, 23 x 2 tires (19″ rims)
AV7 Dbe motor
1961 AV44T Mobylette Standard Telescopique
sheet frame, rear tank, telescopic fork, 23 x 2 tires (19″ rims)
AV7 Dbe motor, with leg shield

 

 

1962-65 AU32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1962-63 CG43   Mobylette Courroie-Galet
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Dbg motor, friction drive, with leg shield
1962-63 AU41   Mobylette Utilitaire
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Sb motor
1962-65 AU42   Mobylette Utilitaire Dimoby
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor
1962-63 AU43   Mobylette Standard
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor

1962-65 AU44 Mobylette Standard Telescopique
sheet frame, rear tank, telescopic fork, 22 or 23 (18 or 19″ rims)
AV7 Dbe motor
1962-65 AU48 Mobylette Motomatic Standard
sheet frame, rear tank, telescopic fork, 22 or 23 (18 or 19″ rims)
AV7 Vb motor

1964-65 AV32S Mobylette Service
bicycle style tube frame, bicycle fork, 600x50B tires (20″ rims)
AV7 S motor
1964-65 BG44   Mobylette Courroie-Galet
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Dbg motor, friction drive, with leg shield
1964-67 AV42   Mobylette Utilitaire Dimoby
sheet frame, rear tank, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor

1964-65 AV44   Mobylette Standard Telescopique
sheet frame, rear tank, telescopic fork, 22 or 23 (18 or 19″ rims)
AV7 Dbe motor
1964-65 AV48   Mobylette Motomatic Standard
sheet frame, rear tank, telescopic fork, 22 or 23 (18 or 19″ rims)
AV7 Vb motor
1964-66 AV76   Mobylette Mono Standard
sheet frame with gas tank, telescopic fork, 23 x 2 tires (19″ rims)
AV7 De motor
1965-66 AV79   Mobylette Mobymatic Super
sheet frame with gas tank, telescopic fork, 23 x 2 tires (19″ rims)
AV7 V motor
1964-65 AV65   Mobylette Mono Luxe
sheet frame-tank-storage, telescopic fork, 2.25 – 18 (18″ rims)
AV7 De motor
1965-66 AV68  Mobylette Mobymatic Luxe
sheet frame-tank-storage, telescopic fork, 2.25 – 18 (18″ rims)
AV7 V motor
1964-68 AV85   Mobylette Mono Grand Luxe
sheet frame-tank-storage, telescopic fork, 2.25 – 18 (18″ rims)
AV7 De motor
1964-68 AV88   Mobylette Mobymatic Grand Luxe
sheet frame-tank-storage, telescopic fork, 2.25 – 18 (18″ rims)
AV7 V2 motor
1964-68 AV89   Mobylette Grand Touring
sheet frame-tank-storage, telescopic fork, 2.25 – 18 (18″ rims)
AV7 V2.5 motor, enclosed motor chain
1962-64 Speciale 50, SPR
sheet frame w/storage, TOP TANK, telescopic, 23 x 2 (19″ rims)
AV7 V2.5 motor, enclosed motor chain (SPR)
1965-66 SP50
sheet frame w/storage, TOP TANK, telescopic, 23 x 2 (19″ rims)
AV7 V2.5 motor

 

 

 

 

 

 

1966-68 C1 Cady
Cady sheet frame, bicycle fork, 23 x 2 tires (19″ rims)
one speed dual auto clutch (Dimoby)

1968-70 M1 Cady
Cady sheet frame, bicycle fork, 21 x 2 tires (17″ rims)
one speed dual auto clutch (Dimoby)

1971-73 M3 Cady
Cady sheet frame, bicycle fork, 21 x 2 tires (17″ rims)
one speed dual auto clutch (Dimoby)

1970-71 40   Mobylette
“40” frame, step-thru, bicycle fork, 21 x 2 tires (17″ rims)
1970’s, 1-speed Dimoby, AR2-10-707 carb, 14101 float
1968-70 AU42   Mobylette Utilitaire Dimoby
“early 40” sheet frame, bicycle fork, 23 x 2 tires (19″ rims)
AV7 Db motor
1967-70 AU46  Mobylette Mono Super Standard
“40” frame, step-thru, telescopic fork, 21 x 2 tires (17″ rims)
1970’s, 1-speed Dimoby, AR2-10-707 carb, 14101 float
1968-70 AU49  Mobylette Mobymatic Super Standard
“70” frame, step-thru, telescopic fork, 21 x 2 tires (17″ rims)
1970’s motor, 1-speed Dimoby, AR2-10-707 carb, 14101 float
1968-71 AU85  Mobylette Mono Grand Luxe
“40” frame, step-thru,, telescopic fork, 2.25 – 18 (18″ rims)
1970’s, 1-speed Dimoby, AR2-10-707 carb, 14101 float
(1970’s motor with 60’s head mount, 60’s round exhaust)

1969-71 AU88  Mobylette Mobymatic Grand Luxe
“70” frame, step-thru,, telescopic fork, 2.25 – 18 (18″ rims)
1970’s, variator Dimoby, AR2-12-707 carb, 14101 float
1969-71 AU89  Mobylette Mobymatic Grand Touring
“70” frame, step-thru, telescopic fork, 2.25 – 18 (18″ rims)
1970’s, variator Dimoby, enclosed chain, long seat
1970-71 AU56  Mobylette Mono Super Confort
“50” frame, step-thru, telescopic fork, 2.25 – 17 (17″ rims)
1970’s motor, variator Dimoby, AR2-12-705 carb, 14101 float
1970-71 AU59  Mobylette Mobymatic Super Confort
“50” frame, step-thru, telescopic fork, 2.25 – 17 (17″ rims)
1970’s motor, variator Dimoby, AR2-12-705 carb, 14101 float

 

After 1970, the AV42, 46 and 49 became the 40, 40T and 40V.

After 1970-71, the AV56 and AV59 became the 50S and 50V.

 

 

 

 

 

 

 

 

1971-74 Mobylette 40T, 40L  (was AV46)
“40” frame, step-thru, telescopic fork, 2 – 17 tires (17″ rims)
1970’s motor, 1-speed Dimoby, AR2-12-705 carb, 14101 float
1971-74 Mobylette 40V (was AV49)
“40” frame, step-thru, telescopic fork, 2 – 17 tires (17″ rims)
1970’s motor, variator Dimoby, AR2-12-705 carb, 14101 float 

1971-74 Mobylette 50S, 50L (was AV56)
“50” frame, step-thru, telescopic fork, 2.25 – 17 (17″ rims)
1970’s motor, 1-speed Dimoby, AR2-12-705 carb, 14101 float
1971-74 Mobylette 50V (was AV59)
“50” frame, step-thru, telescopic fork, 2.25 – 17 (17″ rims)
1970’s motor, variator Dimoby, AR2-12-705 carb, 14101 float

1972-73 Mobylette 85
“70” frame, step-thru, telescopic fork, 2.25 – 18 (18″ rims)
1970’s, 1-speed Dimoby, AR2-10-707 carb, 14101 float
(1970’s motor with 60’s head mount, 60’s round exhaust)
1972-73 Mobylette 88
“70” frame, step-thru, telescopic fork, 2.25 – 18 (18″ rims)
1970’s, variator Dimoby, AR2-12-705 carb, 14101 float
(1970’s motor with 60’s head mount, 60’s round exhaust)
11972-74 Mobylette 92
“90” frame, step-thru, telescopic fork, 2.25 – 18 (18″ rims)
“90” motor, variator Dimoby, AR2-13-739, 14101 float
1971-73 Mobylette 93 electronique
“90” frame, TOP TANK, telescopic fork, 2.50 – 17 (17″ rims)
“90” motor, dual variator, AR2-13-726 carb, 14101 float
1971-73 Mobylette 93D electronique 
“90” frame, TOP TANK, telescopic fork, 2.50 – 17 (17″ rims)
“90” motor, dual variator, AR2-13-726 carb, 14101 float
1972-74 Mobylette 94TT electronique
“70” frame, TOP TANK, telescopic fork, 2.50 – 17 (17″ rims)
“90” motor, dual variator, AR2-13-712 carb, 14101 float

 

 

 

 

These are the Motobecane (AV) or Motoconfort (AU) Mobylette engine models and the bike models they came on. US bike models are red. Not included here are the alias brands Wards Riverside, Raleigh, Suvega engines with their models and MB equivalents. 

 approx.  engine  xxx   bike model xxxx Gurtner    comp
xyears     model xxxx models xxxxxxx carburetor  ratio   drive

1949-51 AV3 xxxxxx AV3 Mobylette x   A10-512   6.5  Standard clutchless
1952-56 AV3.5 S xx  AV or AU 31,33     000-516   6.5  Standard clutchless
1952-59 AV7 S xxxx AV or AU 32 xxx   B10–516   6.5  Standard clutchless
1956-59 AV7 Sb xxx AV or AU 41 xxx   B10–516   6.5  Standard clutchless

1952-56 AV3.5  xxx  AV or AU 31,33    0000-516   6.5   single automatic clutch
1957-66 AV7 De xxx AV/AU 85-65-76 BA10-540   7.5  Dimoby dual auto clutch
1966-69 AV7 De xxx AV/AU 85-65-76 BA10-610   7.5  Dimoby dual auto clutch
1965-66 AV7 Db xxx AV or AU 42 xxx BA10-540   6.5  Dimoby dual auto clutch
1966-69 AV7 Db xxx AV or AU 42 xxx BA10-610   6.5  Dimoby dual auto clutch
1960-61 AV7 Dbe X  AV or AU 43,44 xBA10-540   7.5  Dimoby dual auto clutch
1966-68 AV7 Dbe X  AV or AU 43,44 xBA10-610   7.5  Dimoby dual auto clutch
1958-60 AV7 Dbg xx BG or CG 43,44 AR8.7-525   6.5  Dimoby friction drive
1967-70 M1 Isodyne X1,Cady M1,C1 AR110-674   8.0  Dimoby dual auto clutch
1970-72 M1 Isodyne Cady M1,M1PR  AR110-691   8.0  Dimoby dual auto clutch
1973-75 M3 Isodyne Cady M3PR x  AR111.5-753   8.0  Dimoby dual auto clutch
1978-79 AV7 7 xxxx  7, 7 Ranger xx  AR112-884   7.8  Dimoby dual auto clutch
1978-79 AV7 7  xxx  Model 7 30mph AR112–884   7.8  Dimoby dual auto clutch
1978-79 AV7 7?xxx  Model 7 20+25  AR110-919   6.5  Dimoby dual auto clutch
1968-77 AV7 Dc 0xx 40, 50 25+30   AR212-705   7.8  Dimoby dual auto clutch
1974-80 AV7 Dc xxx 40, 50 25+30   AR212-729   7.8  Dimoby dual auto clutch
1974-80 AV7 Dc xxx 40, 50 20mph   AR210-910   6.5  Dimoby dual auto clutch
1978-79 AV10 xxxxx 41TS, 51S, 51T  AD13-976  0.0   Dimoby, case reed valve

1958-59 AV7 V xxxx  AV or AU 68-79  BA10-549   7.5  Variator + dual auto clutch
1959-70 AV7 V2 xxx  AV or AU 88  xx AR13-488   7.5  Variator + dual auto clutch
1968-77 AV7 Vb xxx  AV or AU 48  xx BA10-549   7.5  Variator + dual auto clutch
1966-71 AV7 V2.5 x  AV89, SP50  xx-   H13-569   9.0  Variator + dual auto clutch
1966-68 AV7 V2.5 S  SP50R xxxxxxx    H13-569   9.0  Variator + dual auto clutch
1966-71 AV7 V2.5 B  AV98 xxxxxxxx    H14-626   9.0  Variator + dual auto clutch
1968-71 AV7 Vb  xxx 40V, 50V xxx   AR212–705   7.5  Variator + dual auto clutch
1972-77 AV7 Vb  xxx 40V, 50V xxx   AR212–729   7.5  Variator + dual auto clutch
1974-75 AV7 Vb  xxx 50V 25 & 30    AR212–705   7.5  Variator + dual auto clutch
1976-77 AV7 Vc  xxx 50V 25 & 30    AR212–705   7.8  Variator + dual auto clutch
1977-80 AV7 Vc  xxx 50V 30 mph    AR212–873   7.8  Variator + dual auto clutch
1977-80 AV7 Vc  xxx 50V 25 mph    AR210–737   7.8  Variator + dual auto clutch
1977-77 AV7 Z  xxxx 99Z   xx x xx    AD13–858  0.0   Variator, supercharger piston
1978-79 AV10   xxx   92GT,51V,51SU AD13-976  0.0   Variator, case reed valve
1982-83 AV10   MBK M16, 41V, 51V   AD13-971 -976 -138 Var, case reed valve
1984-98 AV10   MBK 51V, many others AD13-976  0.0 Variator, case reed valve

Sources:
1. AV7 Engines Chart from Mobylette Repair Manual, official, but only goes up to 1969.
2. motobec.fr for their awesome library of sales brochures for each year, and parts manuals
3. Dating Your Motobecane from Ets Mauger for their excellent grid of years and models
4. Motobecane Club of France for illustrations and information
5. mobyjoost on The Mobylette/Motobecane Forum UK, a Mobylette expert and enthusiast
6. La bleue pour les bleus, on Le Monde en Bleue, another Moby expert
7. Mobylette Mopeds – Owners Workshop Manual by Haynes, covers 1965-76 UK models

 

AV3 Motobecane had been making motorcycles since 1922, but after WWII they switched to making motorized bicycles. Europe’s roads were bombed out, gas stations were gone, bridges were gone, so people had to walk or climb across streams and canyons carrying their bicycles and cargo. In 1949 a lightweight moped was born out of the ashes, called Mobylette (little mobility). It’s 50cc two-stroke engine had an aluminum cylinder with a steel sleeve. It had no crank seals. Both transfers were on the right side, and the piston had transfer windows and a ridge across the top. It was not at all symmetrical left to right. That is why the exhaust exits to the left.

 

AV3.5 This also had the early scavenging design (how to get the intake in and exhaust out in one piston stroke, without mixing or wasting any). Both transfer ports were on the right side. Improvements were 1) it had a hard aluminum cylinder with a hard chrome lining, 2) it had crank seals, 3) some models had a new automatic running clutch and automatic starting clutch. It was simply called “embrayage automatique”, not “Dimoby”. But it was the first Dimoby. Once the rear wheel was moving over 5 mph, the automatic starting clutch starts the engine. Once the engine rpms get above about 2000, the automatic running clutch begins to propel the bike forward.

 

AV7 S, AV7 De  The AV7 S and AV7 De (both 1.5 hp) had a improved, completely different scavenging design, known as Schurle Loop. Intake from the crankcase was forced upward around the left and right sides of the piston. Two streams were directed towards the intake side by the left and right transfer ports. They then merged and looped around, past the spark plug, towards the exhaust side, forcing out any exhaust gases. This was more efficient. In the 1950’s all two-stroke engines adopted this design. The piston changed to a flat-dome top, but the cylinder remained all aluminum with hard chrome lined cylinder wall.

The AV7 De exhaust had a new design, called blunderbuss. Inverting the expansion chamber made the exhaust short, allowing the engine to swing, while still allowing the exhaust to expand. The new compact exhaust design allowed a new swinging engine mount design. The AV7 De V-belt was held at a constant tension automatically by a spring, instead of bolted solid and adjusted periodically. 

 

AV7 V The AV7 V (1.5 hp) had a variator, which is a belt drive with one or both pulleys that vary in size. The belt is a V-belt that grips from the sides of the V. It sinks down deeper between the V-shaped sides of the pulley, as they move apart, and raises up higher between the V-shaped sides as they come together. A set of 4 or 6 steel balls roll outward when the engine rpms increase. That forces the pulley sides together, causing the V-belt to ride higher. The result is the engine rpm stays the same as the bike accelerates.

The blunderbuss short exhaust allowed the engine to swing about 20 degrees. Below 15mph the engine is forward, in low gear, and above 25mph it is rearward, in high gear. Amazing!

 

AV7 V2, AV7 Dbe The AV7 V2 (2.0 hp) and AV7 Dbe (1.5 hp) are 95% the same as the preceding AV7 V and Db. Only the crankshaft, crank bearings, and piston changed. The old crank axles were 15mm everywhere, and took standard bearings 6302 (15 x 42 x 13) MB#00518. But installing the press-fit bearings meant dragging the clutch side bearing over the clutch clip groove and needle bearing surface, sometimes getting stuck or causing harm. The new crank was thicker at the bearings, 16mm. The bearings no longer damaged the crank during installation, but were not standard. They were special 6302-QR (16 x 42 x 13 with rounded inner edge) MB#16906. The AV7 V2 illustration does not show the 15-to-16 step in the crankshaft, because it is the older AV7 V illustration, but it does show the new crank and bearing part numbers. 

The piston design did not change. But the piston was offered in many slightly different sizes or “sorts”. The AV7 V parts diagram said 14820 for the piston, but the AV7 V2 said nothing. That is very subtle. There was a separate sheet for pistons with over ten different part numbers and sizes. Because not all of the plated cylinders are made to the exact same diameter, before this you had to sand the piston if it happened to be too tight for that cylinder, or settle for a loose fit like a worn engine has, if it happened to be too loose. 

 

 

AV7 V2.5 This was a late-1960’s 2.5 horsepower version, instead of 2.0 or 1.5 hp. It had noticeably different head fins that run at an angle instead of straight back. Both the cylinder and head fins were wider.

 

 

 

 

M1, M3 These late-60’s and early-70’s moped engines had the Dimoby dual clutch with drive belt, and magneto behind it, both on the left side. They were called Isodyne engines, which roughly means “same side”. Wierd, like Solex!

 

 

 

 

 

AV7 Vb, AV7 Dc These 1970’s models most notable differences are the square shape of the cylinder and head cooling fins (instead of round) and the all-chrome exhaust (instead of painted rear section). Many things became square in the 70’s.

AV7 Vc This was the late-70’s AV7 (2.0 or 1.5 hp) on US-models 50V series.

 

 

 

AV7 Z This 1977-only engine was a unique design. On top it has big fins and a piston-controlled reed valve. So the piston has an intake window. But look under the crankcase and you will see a second cylinder and piston. It pressurizes and depressurizes the crankcase every revolution. It is timed to be lowest pressure during the intake process, and highest during the transfer process. It is a supercharger for a two-stroke engine. But the production did not last long.

 

 

AV10 In 1978 Motobecane came out with an improved and  modernized engine design. Case reed induction is where the carburetor feeds the crankcase through a reed valve, instead of the back of the cylinder and under the moving piston. This changed the back-and-forth flow of piston-port induction to a unidirectional stop-and-go flow. The result was better performance, like 20% more low-rpm torque.

In 1981 Motobecane became bankrupt. For 2 years nothing was produced. Then they were bought by Yamaha, and their name changed to MBK. Production resumed in 1982.

By the mid-80’s pedals were no longer mandatory in most countries. So many of the mid-80’s MBK mopeds have kick-start with foot-pegs instead of pedals

 

 

 

 

Identification

Parts that are different for each version are listed here.
10 versions have 10 quantity columns. The quantity is 
0 if the part is never on that version.
1 if the part is always on that version.
1 if the part is sometimes on that version.

  E N G I N E   V E R S I O N S   
01010 12345 67890   Engines ’74-75 6 volt
52341 00010 00000 engine #4 variator 25 mph
01010 12345 67890   Engines ’76-77 6 volt       
53444 10000 00000 engine #1 Dimoby 20 mph
53949 01000 00000 engine #2 Dimoby 25 mph
53744 00100 00000 engine #3 Dimoby 30 mph
52341 00010 00000 engine #4 variator 25 mph
53745 00001 00000 engine #5 variator 30 mph
01010 12345 67890   Engines ’78-80 12 volt   
54146 00000 10000 engine #6 Dimoby 20 mph
54147 00000 01000 engine #7 Dimoby 25 mph
54149 00000 00100 engine #8 Dimoby 30 mph
54148 00000 00010 engine #9 variator 25 mph
54844 00000 00001 engine #0 variator 30 mph
01010 12345 67890    Cylinders     
22335 00100 00000 cyl. says 581051, FB2 47
23460 00001 01111 cyl. says 682051, most say nothing
53505 10000 10000 cyl. says 681051, TUM207
54328 01010 00000 cyl.   S25682051, TUM207
01010 12345 67890   Exhausts     
21103 11100 00000 exhaust  
22872 11111 11111 exhaust
01010 12345 67890   Intakes   
16673 00010 00010 intake center ∅16 x 10
16619 00001 00000 intake center ∅17 x 12 to 3/77
21201 01100 01100 intake side    ∅19 x 12
22899 00001 00001 intake side    ∅19 x 13? 3/77 on
53496 10000 10000 intake side    ∅19 x 10
01010 12345 67890   Intake Gaskets   
52646 10000 10000 intake gasket round hole
17073 01111 01111 intake gasket rectangle hole
01010 12345 67890   Carburetors 
20026 00001 00000 carb AR2-12-705 center ∅17
22160 01100 00000 carb AR2-12-729 side-5 ∅19
22160 00000 01100 carb AR2-12-729 side-6 ∅19
52175 00010 00000 carb AR2-10-737 center ∅16
52175 00010 00000 carb AR2-10-759 center ∅16
52175 00000 00010 carb AR2-10-991 center ∅16
54115 10000 00000 carb AR2-10-910 side-5 ∅19
54115 00000 10000 carb AR2-10-910 side-6 ∅19
54973 00001 00000 carb AR2-12-873 side-5 ∅19
54973 00000 00001 carb AR2-12-873 side-6 ∅19
54973 00000 00001 carb AR2-12-978 side-6 ∅19
01010 12345 67890 Model 50, 50V Chains
18368 10000 10000 chain   99L+1 for 12 x 48T
17693 01000 01000 chain   96L+1 for 11 x 44T
18427 00100 00100 chain   97L+1 for 13 x 44T
17785 00011 00011 chain 102L+1 for 11 x 54T
01010 12345 67890 Model 40 Chains
18429 10000 10000 chain   93L+1 for 12 x 48T
20766 01000 01000 chain   90L+1 for 11 x 44T
53874 00100 00100 chain   91L+1 for 13 x 44T

 

 

---

Sources

1977 Motobecane America Dealer Manual
’76-’77 40TS, 40TL, 50S, 50L engines 1, 2, 3
’76-’77 50VL 0000, 0000, 00  engines 4, 5
’76-’77 Solex 4600

 

1978 Motobecane America Dealer Manual
’76-’77 40TS, 40TL, 50S, 50L engines 1, 2, 3
’76-’77 50VL 0000, 0000, 00  engines 4, 5
’76-’77 Solex 4600

 

 

1979 Motobecane America Dealer Manual
’78-’80 40T, 50S, 50L, Traveler  engines 6, 7, 8
’78-80 50VL, 50VLA, 50VLS xx  engines 9, 0
’78-80 50VLX, Moby, Le Moped engines 9, 0
’78-80 Model 7, Sebring, Solex 4600

 

 

---

Discussion

Porting: The deepest secret is that there are four different cylinders, all identical on the outside. The different cylinders could have different port widths and heights (duration’s). Much more needs to be learned and explained. Why does a 2 hp one-speed model have a different cylinder than a 2 hp variable speed model?   

Gearing: The drive belt is the same for all versions. The 1-speed front pulley is the same for all versions. The 2-speed front pulley is the same for all versions. The rear pulley (without the front sprocket) is the same for all versions. Therefore, the pulley ratio is the same for all versions. The variator models in “low gear” have the same pulley ratio as the Dimoby models. As the rear wheel speed increases, the variator makes the front pulley bigger. The engine swings back as the front pulley grows, until it is in “high gear”. In high gear the pulley is about 40% bigger. So even though the variator models are geared low (small front and large rear) in chain sprockets, the variator makes up for it, above 18mph, by making the overall gearing about the same.