Myrons Mopeds

Contents:
1. Explanations
2. Rings for Sale

 

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1. Explanations

Two-Stroke Piston Ring Types C, T, L

type C = Common “square”  shape (cross-section)
Listed as: D x h x w

 

type T = Trapezoidal “slant top” shape (cross-section)
Listed as: D x h1/h2 x w

 

type L = L-shape  aka  “Dykes”  shape (cross-section)
Listed as: D x h1/h2 x w1/w2

 

Two-Stroke Ring Gap Types N, I

gap N = GN Grano Normale gap style is for ring pin on side of ring groove
gap  I  = GI  Grano Interno = gap style is for ring pin in center of ring groove
gap (blank) is for L-ring gap style, ring is like a GI but groove is like a GN

 

 

 

 

 

 

 

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2. Rings for Sale

 

price is for each ring, unless noted.  All rings are for 50cc engines, unless noted.

size x height x width 00 type gap price    under 38 mm

36.50 x 1.50 /.0 x 0.1/0.1 C  N  $10.0
222812 Tomos MC36 36cc

 

size x height x width 00 type gap price    38 to 38.9 mm

38.00 x 1.50 /.0 x 0.1/0.1 C   I  $10.0
0215.100.100 Sachs 1979-on 504,505 1C,1D upper
Zanetti (front engine)

38.00 x 1.5/1.3 x 1.60 /7  T  N  $17.0
223707 Tomos A55 (2001-06) superseded in ’07 to 236802

38.00 x 1.50 /.0 x 0.1/0.1 C  N  $9.00
236802 Tomos A35 (1991-06), Tomos A55 (2007-on)
000.672.5110 Derbi 1976-1986 lower only, Odyssey, Solo

38.00 x 2.0/1.0 x 1.5/0.4  L  N  $10.0
000.802.5110 Derbi 1976-1986 upper (fits Puch loose inner)

38.00 x 2.0/1.0 x 1.6/0.6  L  N  none
328.110.9601 Puch 1979-1980 deluxe models upper

38.00 x 2.00 /.0 x 0.1/0.1 C  N  $13.0
331.110.1601 Puch rounded edge for aluminum cylinder

38.00 x 2.00 /.0 x 0.1/0.1 C  N  $9.00
320.110.0601 Puch except some ’79-80 upper
0215.009.000 Sachs 504, 505 1A,1B both, 1C,1D lower
044754 Tomos A3 1975-1990, AMF BHE900 rear engine
26.1001 Morini S5K, S5K2, 2M, 3M, F48

38.00 x 2.50 x 1.50.7/0.7  C  N  $11.0
71.0802.0 4600 Minarelli V1 1hp 20mph, Sears Allstate, early Puch

38.00 x 2.50 /.0 x 0.1/0.1 C flat  none
Solex 45cc 1946-1954  use 38.00 x 2.50 C N

38.20 x 1.50 /.0 x 0.1/0.1  C  N  $10.0
182518 Piaggio 79-later & some 78s lower ring

38.20 x 2.00 /.0 x 0.1/0.1  C  N  $16.0
166945 Piaggio 78-80 USA-type, must file down a 077775
26.1002 1os Morini S5K, S5K2, 2M, 3M, F48

38.20 x 2.0/1.0 x 1.8/.75  L  N  $14.0
182519 Piaggio 79-later & some 78s upper ring

38.20 x 2.50 x 1.50.7/0.7  C  N   none 
71.0852.7 4610 Minarelli 1os V1 1hp 20mph, Sears Allstate, early Puch

38.205x1.9/1.0 x 1.5/0.4  L  N  $8.00
000.802.5110 1os Derbi 1976-1986 upper ring

38.205x2.0/1.0 x 1.9/0.5  L  N  $9.00
0
38.205x1.50 /.0 x 0.1/0.1 C  N  $15.0
000.672.2511 1os Derbi lower

38.25 x 1.50 /.0 x 0.1/0.1 C  N  $21.0
0 made from a filed 38.4 x 1.5

38.25 x 2.00 /.0 x 0.1/0.1 C  N  $16

38.40 x 1.50 /.0 x 0.1/0.1 C  N  $14.0
132515 std or 1os Piaggio lower ring, 79-later & some 78s

38.40 x 1.5/1.3 x 1.60 /7  T  N  none
3010010 Kinetic TFR (Vespa Si remake) 95-later

38.40 x 2.00 /.0 x 0.1/0.1 C  N  $10.0
077775 Piaggio 77-earlier & some 78s, early Kinetic

38.40 x 2.0/1.0 x 1.8/.75  L  N  none 
G.68473 std or 1os Piaggio upper ring, 79-later & some 78s

38.40 x 2.50 x 1.50.7/0.7  C  N  $9.00
71.0852.7 4620 Minarelli 2os V1 1hp 20mph, Sears Allstate, early Puch

38.50 x 1.50 /.0 x 0.1/0.1 C  N  $12.0
227758 1os Tomos A35

38.50 x 2.00 /.0 x 0.1/0.1 C  N  $10.0
044751 1os Tomos A3

38.60 x 1.50 /.0 x 0.1/0.1 C  N  $9.00
137693 1os or 2os Piaggio  

38.60 x 2.00 /.0 x 0.1/0.1 C  N  $14.0
98196 1os Sachs 504, 505, 2os Piaggio 79- lower

38.60 x 2.0/1.0 x 1.8/.75  L  N  $13.0
137690 1os or 2os Piaggio upper ring, 79-later & some 78s

38.70 x 1.50 /.0 x 0.1/0.1 C  N  $16.0
71.0803.0 4635 Minarelli V1 (US 1979-on and some ’78)

38.80 x 2.0/1.0 x 1.65/.6  L  N  $11.0
4.7470.5140 Demm Smily upper
68.0116.0 Minarelli P4 (export al-cyl, Compact System, Radiale) upper

38.80 x 2.0/1.0 x 1.8/.75  L  N  $11.0
137691 2os Piaggio upper ring

38.80 x 1.50 x 1.50.7/0.7  C  N  $10.0
71.0805.0 4640 Minarelli V1 (US to-1978)
68.0115.0 Minarelli P4 (export iron-cyl, Sport Quadro) both
68.0115.0 Minarelli P4 (export al-cyl, Compact System, Radiale) lower
137694 2os Piaggio upper ring

38.80 x 1.50 /.0 x 0.1/0.1 C   I   none
22350-65 Aermacchi Harley Davidson M50 1965-66 stroke 42

38.80 x 2.00 /.0 x 0.1/0.1 C  N  $10.0
4.7470.5100 Demm Smily lower

 

size x height x width 00 type gap price    39 to 39.9 mm

39.00 x 1.00 1./x 1.7/0.7  C  N  $19.0
26.1056 Morini S5N, S5GS kids off road, both

39.00 x 1.2/1.0 x 1.70 /7  T   I    none
13011.GE2.305a Honda NS50 upper

39.00 x 1.20 x 1.85 /0..7  C   I   $10.
13011.GE2.305b Honda NS50 lower

39.00 x 1.50 1./x 1.7/0.7  C  N  $10.0
71.0855.7 4650 1os Minarelli  V1, P4, P4 (alum cyl) lower
26.1044 Morini S5T, S5E, S5ET kids off road, lower

39.00 x 1.50 1./x 1.7/0.7  C   I   $10.0
22351-65 1os Aermacchi Harley Davidson M50 1965-66

39.00 x 2.00 1./x 1.7/0.7  C   I   $12.0
22148 Motobecane (after 06-76) Morini S5R lower

39.00 x 2.00 1./x 1.7/0.7  C  N  $10.0
14821 Motobecane (before 07-76), DiBlasi mini-cycle

39.00 x 2.0/1.0 x 1.8/0.7  L  N  $19.0
26.1003 Morini S5R, S5T alum. cylinder (upper ring)

39.03 x 2.00 1./x 1.7/0.7  C   I   $12.
2812200 Jawa 207 1970-83 standard

39.20 x 1.50 1./x 1.7/0.7  C  N  $15.0
71.0855.7 4660 2os Minarelli V1, P4, P4 (al-cyl) lower

39.20 x 1.50 1./x 1.7/0.7  C   I   none
22352-65 2os Aermacchi Harley Davidson M50 1965-66

39.25 x 1.2/1.0 x 1.70 /7  T   I   $19.
13012.GE2.305a 1os Honda NS50 upper

39.25 x 1.20 x 1.85 /0..7  C   I   $10.
13012.GE2.305b 1os Honda NS50 lower

39.28 x 2.00 x 1.65 /0..7  C   I   $14.0
2812201 1os Jawa 207 1970-83

39.40 x 1.50 1./x 1.7/0.7  C  N   none 
71.0855.7 4670 3os Minarelli V1, P4, P4 (al-cyl) lower

39.40 x 1.50 1./x 1.7/0.7  C   I   none
22353-65 3os Aermacchi Harley Davidson M50 1965-66

39.40 x 2.50 1./x 1.7/0.7  C  N   $11.0
Rizzato Califfo 1978 (Rizzato 119 engine)

39.50 x 1.2/1.0 x 1.70 /7  T   I    none
13013.GE2.305a 2os Honda NS50 upper

39.50 x 1.20 x 1.85 /0..7  C   I   $10.
13013.GE2.305b 2os Honda NS50 lower

39.50 x 1.70 x 1.60 /0..7  C flat $10.0
60817 Solex rings (3) no locating pins

39.53 x 2.00 x 1.65 /0..7  C   I   $19.0
2812202 2os Jawa 207 1970-83

39.60 x 1.50 1./x 1.7/0.7  C  N  $17.0
71.0855.7 4680 4os Minarelli  V1, P4, P4 (al-cyl) lower

39.80 x 1.50 1./x 1.7/0.7  C  N  $17.0
71.0855.7 4690 5os Minarelli V1, P4, P4 (al-cyl) lower

39.80 x 2.50 1./x 1.7/0.7  C  N none
1os Rizzato Califfo 1978 (Rizzato 119 engine)

 

size x height x width 00 type gap price    40 to 40.9 mm

40.00 x 1.2/1.0 x 1.60 /7  T  N  $14.0
633086 China 49cc two-strokes upper, most

40.00 x 1.2/1.0 x 1.70 /7  T   I   $14
2W1.11610.0000a Yamaha YSR50 upper, PGO Star 50 upper, others

40.00 x 1.20 x 1.85 /0..7  C   I   $13
2W1.11610.0000b Yamaha YSR50 lower, PGO Star 50 lower, others

40.00 x 1.5/1.3 x 1.80 /7  T  N  $14.0
13011.147.005a Dailim Trac, upper for Honda NC50,PA50,Yamaha QT50

40.00 x 1.50 1./x 1.7/0.7  C  N  $10.0
55196 Batavus M48, M56, Trac (not Daelim), Flandria Bermuda
13011.147.005b Honda lower for NC50,PA50, Yamaha QT50 lower
G7347 Benelli G2, 1965-75 Ward Riverside, Benelli mini-cycles
26.1044 Morini S5R, S5T alum. cylinder (lower ring)

40.00 x 1.50 1./x 1.7/0.7  C   I   $10.0
551913 Morini MO Gyromat,Convert (early ’70s MO1,MO2)
0F0.250.0111 Derbi 1986-1989 flat reed, Kreidler Flory

40.00 x 2.00 1./x 1.7/0.7  C  N  $10.0
307.021.00 Garelli all 1970’s, 00’s Avanti/Mont (most)
Casal K177, 2000’s Hero Majestic Pacer

40.00 x 2.0/1.0 x 1.8/0.7  L  N   $10.0
310.001.00 Garelli Monza GT upper

40.00 x 2.50 1./x 1.7/0.7  C   I   $14.0
38315 Peugeot 102, 103 (almost all US models)

40.20 x 1.50 1./x 1.7/0.7  C  N  $22.0
G7347/2 1os Benelli, 1os M Ward, filed down 40.25

40.20 x 2.00 1./x 1.7/0.7  C  N  $15.0
308.027.00 1os Garelli

40.25 x 1.00 1./x 1.7/0.7  C  N  $12.0
633087 1os China 49cc two-stroke scooter

40.25 x 1.5/1.3 x 1.80 /7  T  N   none
13021.147.005a 1os Honda NC50, PA50 upper

40.25 x 1.50 1./x 1.7/0.7  C  N  $15.
13021.147.005b 1os Honda NC50, PA50 lower, 480511 1os Laura M48

40.30 x 1.50 1./x 1.7/0.7  C  N  $19.0
4641b Minarelli V1HL and V1L lower, filed down 40.5

40.30 x 2.0/1.0 x 1.8/0.7  L  N  none
4641a Minarelli V1L upper

40.40 x 1.50 1./x 1.7/0.7  C  N  none  
G7347/4 2os Benelli  G2, 2os M Ward and mini-cycles

40.40 x 1.50 1./x 1.7/0.7  C   I   $9.00
26.1045 Morini MO1, MO2, MO4, M1

40.40 x 2.00 1./x 1.7/0.7  C  N  $12.0
308.028.00 2os Garelli
40.50 x 1.5/1.3 x 1.80 /7  T  N  none
13031.147.005a 2os Honda NC50, PA50 upper

40.50 x 1.50 1./x 1.7/0.7  C  N  $12.0
13031.147.005b 2os Honda NC50, PA50 lower, 2os Laura M48

40.50 x 2.50 1./x 1.7/0.7  C   I   $12.0
33648 1os Peugeot 102, 103 (some, but none in CA)
40.60 x 1.50 1./x 1.7/0.7  C  N  $16.0
G7347/6 3os Benelli, 3os M Ward
71.0860.7 4651b 1os Minarelli V1L lower

40.60 x 1.50 1./x 1.7/0.7  C   I  $12.0
26.1046/6 1os Morini MO1, MO2, MO4, M1

40.60 x 2.00 1./x 1.7/0.7  C  N  $10.0
308.029.00 3os Garelli

40.60 x 2.0/1.0 x 1.65/.6  L  N  $15.
71.0860.7 4651a 1os Minarelli V1L upper

40.75 x 1.5/1.3 x 1.80 /7  T  N   none
13041.147.005a 3os Honda NC50, PA50 upper

40.75 x 1.50 1./x 1.7/0.7  C  N   none
13041.147.005b 3os Honda NC50, PA50 lower

40.80 x 1.50 1./x 1.7/0.7  C   I   $12.0
26.1046/8 2os Morini MO1, MO2, MO4, M1

40.80 x 1.50 1./x 1.7/0.7  C  N  $9.0
71.0860.7 4661b 2os Minarelli V1L lower

40.80 x 2.0/1.0 x 1.65/.6  L  N   none
71.0860.7 4661a 2os Minarelli V1L upper

40.80 x 2.00 1./x 1.7/0.7  C  N   $10.0
308.030.00 4os Garelli 

 

size x height x width 00 type gap price    41 mm and over

41.00 x 1.2/1.0 x 1.90 /7  T   I   $14
13010.GJ5.015a Honda TG50, NN50 Gyro upper

41.00 x 1.2/1.0 x 1.90 /7  C   I   none
13010.GJ5.015b Honda TG50, NN50 Gyro lower

41.00 x 1.5/1.3 x 1.80 /7  T   I   $14.0
12140-16B10 Suzuki FY50, FZ50, FA50 upper

41.00 x 1.50 1./x 1.7/0.7  C  N   $10.0
Minarelli V1 Industriale 53cc stroke 42

41.40 x 1.50 1./x 1.7/0.7  C   I   $12.0
Unknown only one

42.00 x 1.50 1./x 1.7/0.7  C  N   none
Minarelli V1 Carrabela 58cc stroke 42

42.00 x 2.00 1./x 1.7/0.7  C  N   $10.0
Puch DS60

42.00 x 1.50 1./x 1.7/0.7  C flat $40/set
E660-00-50 Indian 4-stroke ring set comp(2) oil(1)

42.25 x 1.50 1./x 1.7/0.7  C flat $40/set
E660-10-50 1os Indian 4-stroke set comp(2) oil(1)

42.50 x 1.50 1./x 1.7/0.7  C flat  none
E660-20-50 2os Indian 4-stroke set comp(2) oil(1)

42.75 x 1.50 1./x 1.7/0.7  C  N  $12.0
big bore kit appr 60cc only two

43.00 x 1.50 1./x 1.7/0.7  C  N  $12.0
4635HP big bore kit appr 60cc only 3

43.00 x 2.0/1.0 x 1.65/.6  L   N  $16.0
big bore kit appr 60cc only one

43.50 x 1.50 1./x 1.7/0.7  C  N  $10.0
big bore kit appr 60cc

44.00 x 1.50 1./x 1.7/0.7  C  N  $10.0
G-591 Benelli Dynamo 65 59cc stroke 39
MF-554 big bore kit Peugeot 103 59cc
2
44.00 x 1.50 1./x 1.7/0.7  C   I    $11
22350-67 Aermacchi Harley Davidson M65 1967-72 64cc stroke 42

44.20 x 1.50 1./x 1.7/0.7  C   I    none
22351-67 1os Aermacchi Harley Davidson M65 1967-72 64.5

44.40 x 1.50 1./x 1.7/0.7  C   I    none
22352-67 2os Aermacchi Harley Davidson M65 1967-72 65cc

45.00 x 1.50 1./x 1.7/0.7  C  N  none
71.8187 Minarelli P4-70, P6-70 67cc

45.20 x 1.50 1./x 1.7/0.7  C  N  none
71.8187 1os Minarelli P4-70, P6-70 67cc

45.40 x 1.50 1./x 1.7/0.7  C  N  none
71.8187 2os Minarelli P4-70, P6-70 67cc  

 

 

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Ring Information

 

Pinned or Not Pinned: Most moped piston rings are two-stroke style, where there are pins in the ring grooves of the piston that keep the rings from rotating around. Two stroke cylinders have holes or ports that the ring ends can snag on. So two stroke rings are pinned to the piston. Four stroke cylinders do not have any holes, so four stroke rings are not pinned. Knowing about those pins is important when installing.    

Getting the right rings: If your model is not in the applications, then you must measure the bore and the ring thickness. A calipers is the best tool to measure the bore (ring diameter) and ring thickness. Sometimes your rings might not be original, for many reasons. The piston might be aftermarket with thinner rings. The cylinder might be bored out to an oversize bore. Some mopeds came with more than one piston size or ring style.

Break a ring, how not to: Two stroke pistons have little pins (stumps, bumps) in the piston ring grooves that prevent the rings from rotating. Knowing where each ring locating pin is, and aligning the ring gap over the pin during cylinder installation, is the key to not breaking the ring. 

Measuring wear: A new piston ring is a the best tool to measure how worn a cylinder is. Conversely, a new cylinder is the best tool to measure how worn a ring is. To measure the wear of a ring, you need a perfectly round cylinder of a precisely known bore. A worn cylinder that has not been honed will still have it’s original new bore at the very top, above where the rings rub at. A new ring in a new cylinder should have a very small end gap of .004 to .008″. A worn but still OK cylinder with a new ring will have a gap of .0010 to .018″. A worn cylinder and ring both will have an end gap of over .020″(.5mm). A badly worn cylinder and/or ring will have a huge gap, over .030″(.75mm). You measure ring gap with a feeler gauge.

Classifying rings: Rings get mixed up and are difficult to tell the size, unless a perfectly round cylinder of an appropriate size is available to place the ring in. If you try to squeeze a piston ring into a circle with just fingers, it inevitably becomes a very rounded polygon, or at best an ellipse. So the measurement becomes inaccurate. At right is how Myrons Mopeds’s Jawa piston rings were classified, using a piece of aluminum tubing with a tight fitting piston inside it to hold the tube round, and the test ring square. From top to bottom, 39.03 x 2.0, 39.28 x 2.0, 39.53 x 2.0, 39.78 x 2.0mm. Each ring increases in diameter by 0.25mm, so the circumference increases by Pi times that, or about 0.8mm. Here the inside of an old fishing pole tube is 39.78mm, perfect for the 3rd oversize 39.78 ring, on the bottom, with a gap of almost zero. Each gap is 0.8mm more because each ring is 0.25mm less diameter. It is important that the piston and ring fit the cylinder properly.   

Filing down: To make a ring slightly smaller, one of the two ring ends can be filed down, while preserving the shape. To reduce the size (diameter) by 0.20 mm, the end must be filed down by pi times that, 0.63 mm. When a filed down ring is installed in a cylinder smaller than it was designed for, two things change. The tension is greater, and the shape is slightly non-circular. So filed rings need a longer break-in period, to wear down the higher places. With 38 to 41 mm rings, the size can be reduced by 0.2mm with about 30 minutes of break-in, and by 0.5mm with about 2 hours of break-in. After break-in the rings have a mirror polish all around.

Why is the width not specified? Because the inner side of the ring does not touch anything. The ring has spring tension pushing it outwards, keeping the bottom (inner) surface from touching the bottom of the ring groove. So the ring width can be any amount, from about half the groove depth, to the groove depth. The exact ring width is not important. Exact ring height and diameter are important. 

 

 

1. Sachs Engines

Welcome. “Fichtel & Sachs” was founded in 1895 by Ernst Sachs and Karl Fichtel, in Schweinfurt Germany. Ernst Sachs was a racing cyclist and technical wiz, while Karl Fichtel was a business manager. They made hubs and spindles for bicycles and lorries. Ernst Sachs designed and patented a new bicycle hub, the “coaster brake” in 1894, which sold successfully, and also invented the “free-wheel” in 1903. Fichtel died in 1911, and Sachs, in 1932. The first Sachs engine did not come out until 1930.

Sachs introduced their first Saxonette moped in 1937, a 60cc two-stroke 1.2 hp “motor wheel” where the rear wheel and motor were a unit. 320,000 were made in 1937, and 500,000 in 1938. Read more at https://en.wikipedia.org/wiki/Sachs_Motorcycles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sachs engines have the following numbering scheme:  SSX/YZ(W)

• SS is the engine size 30, 50, 80, 100, 150, 175 (50 for US models)
• X is the bottom end designation 1, 2, 3, 4, 5, 6 (4, 5 or 8 for US models).
• Y is the number of speeds 1, 2, 3, 4, 5, 6 or A ( 1 or A for US models)
• Z is the cylinder designation, and represents the speed restrictions applied, and may be A, B, C or D
• W is an additional designation sometimes included on later models and import models to identify other peculiarities. A “K” for example indicates the kickstart version.

Examples:

• 301/A   is 30 cc size, type “1” bottom end (rear bicycle wheel), “A” automatic transmission
• 501/4A is 50 cc size, type “1” bottom end (1960’s   kick-start), “4” speed manual trans.
• 502/2A is 50 cc size, type “2” bottom end (1960’s with pedals) “2” speed manual trans.
• 504/1A is 50 cc size, type “4” bottom end (1970’s   no pedals), “1” speed, “A” speed version
• 505/1D is 50 cc size, type “5” bottom end (1970’s with pedals), “1” speed, “D” speed version
• 508/A   is 50 cc size, type “8” bottom end, (80’s 2sp no pedals) “A” automatic transmission
• 1005/5A 100 cc size, type “5” bottom end (1980’s   kick-start), “5” speed, “A” speed version
• 1255/6A 125 cc size, type “5” bottom end (1980’s   kick-start), “6” speed, “A” speed version

 

 

Benelli models with 4M, 4MS, 4M65 engines 1965-77

49 or 59cc vertical cylinder 4-speed foot-shift, manual clutch.

 

 

 

 

 

4M engine: The 4M has a mild cylinder, with shorter and narrower ports, a 12mm ID intake, and a smaller 12mm Dellorto SHA 14/12 side-draft carburetor.

The 4M engine was on the 1968-69 Benelli Dynamo Compact. M means marce, Italian for “march”, or in the motorcycle industry “foot-shift”.

4MS engine: The 4MS has a “sport” cylinder, with taller and wider ports, a 16mm ID intake, and a larger 16mm Dellorto UA16S down-draft carburetor. Horsepower 4.5 at 7800 rpm. This is the version shown in the parts illustration.

The 4MS engine was on the ’65-68 Benelli Fireball, ’67-68 Fireball Trail, ’65-68 Riverside 450SS, and ’69 Dynamo Trail and Super Mini.

1965-68 Ward Riverside 450SS with Benelli 4MS engine

4M and 4MS partial parts list:

00#  price 0 1970# 00000 description        specs
002  $0.20 ‌MU332 head washer ∅6
003  $0.30 ‌MU280 head & ex. nut M6
008  none  ‌B1348/2 spark plug = NGK BR6ES
009  none   ‌G7007 cylinder stud M6 x ?
011  $12.0 ‌G7010 head gasket ∅41
013  none   ‌G7011/2 base gasket
035  $7.50  MU2265  drive seal 28-38-7
084  $00.0 MU7865 right crank seal
087  $45.0 G7346 piston bare dome top hi-comp use #91
089  $10.0 ‌G7347 0 piston ring Std 40.0 x 1.5 GN
089  $22.0 G7347/2 piston ring 1os 40.2 x 1.5 GN
089  none   G7347/4 piston ring 2os 40.4 x 1.5 GN
089  $16.0 G7347/6 piston ring 3os 40.6 x 1.5 GN
090  $8.00 G7115 piston pin ∅12 x ?
091  $65.0 ‌G7346/C   piston assy Std 40.0 x 17-12-18 GOL
091  N/A     G7346/C2 piston assy 1os 40.2 x 17-12-18
091  N/A     G7346/C4 piston assy 2os 40.4 x 17-12-18
091  N/A     G7346/C6 piston assy 3os 40.6 x 17-12-18
100  N/A     G7342 left crank seal 15-25-5

101  $70.0 G29 carburetor for 4M, Dellorto SHA 14/12 #58 jet
101  $00.0 G29 see Benelli FA section for parts list

 

 

 

 

4M65 engine: Since 1970 the 4M and 4MS 49cc engine size was increased to an advertised 65cc on the 4M65. But the actually size was 59.3cc. Bore and stroke were 44 x 39 mm. That was dishonesty in labeling, motivated by “bigger is better” thinking.

The Benelli 4M65 engine is on 1971-73 Mini Enduro, 1970-72 Cougar, 1970-71 Dynamo Compact, Dynamo Trail (Scrambler), Woodsbike, 1972-73 Compact II, Dynamo II, Woods II, 1974-75 Dynamo Trail, 1976-77 Dynamo. It has large square head, larger piston, Dellorto ME15BS carburetor. 

 

 

 

 

Benelli models with 3V, 3VK, 3VK-1978 engines

49cc vertical cylinder 3-speed grip-shift, manual clutch.

 

 

 

 

 

 

 

 

 

 

3V and 3VK partial parts list:

00#  price 0 1980# 0000 1970# 00000 description        specs
004  $0.30 ‌92.60.22.06 MU280 head & ex. nut M6
005  $0.20 ‌95.00.02.06 MU332 head washer ∅6
006  $4.00 ‌96.50.61.05 G7483 cylinder stud M6 x 105 (107 total)
007  N/A     ‌70.02.24.00 G7825 head
008  $7.00 ‌48.02.20.70 G7010 head gasket ∅41
007  N/A     ‌00.00.00.00 G7006/A cylinder (different from FA)
011  N/A     ‌00.00.00.00 G310 intake pipe ∅18 at clamp (different from FA)
062  N/A     00.00.00.00 G7011 base gasket
095  $47.0.0 70.06.04.00 G7346 piston bare dome top hi-comp use #183
096  $10.0 48.06.12.70 G7018 piston pin ∅12 x ?
097  $1.50 90.27.20.12 L339 piston pin clip ∅12
098  $10.0 ‌48.06.08.70 G7347 0 piston ring Std 40.0 x 1.5 GN
098  $22.0 48.06.08.72 G7347/2 piston ring 1os 40.2 x 1.5 GN
098  none   48.06.08.74 G7347/4 piston ring 2os 40.4 x 1.5 GN
098  $16.0 48.06.08.76 G7347/6 piston ring 3os 40.6 x 1.5 GN
106  N/A     70.71.24.00 G7094/4 magneto assy Dansi MSL105
106  N/A     00.00.00.00 G7094/2 magneto assy CEV 6097
106  N/A     70.71.16.20 G00000  magneto assy Dansi 100844  on 3VK NT (Export FA)
133   00.00.00.00 M56/2  points for MSL105 01.3240 photo
135  $15.0 00.00.00.00 M26/2  condenser for MSL105 M17D photo
150  $70.0 70.11.26.00 G29  carburetor Dellorto SHA 14/12L genuine, modern (not all metal)  
150  $00.0 00.00.00.00 G29  with correct #58 jet, 18 clamp sleeve, air cover, screen and clip
157  $5.00 35.93.57.00 DE1486/58main jet 58
133  $00.0 00.00.00.00 G7094/2Dpoints for CEV 6097
183  $65.0 70.06.02.20 G7346/C   piston assy Std 40.0 x 17-12-18 GOL
183  N/A     70.06.02.22 G7346/C2 piston assy 1os 40.2 x 17-12-18
183  N/A     70.06.02.24 G7346/C4 piston assy 2os 40.4 x 17-12-18
183  N/A     70.06.02.26 G7346/C6 piston assy 3os 40.6 x 17-12-18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Benelli models with GM, GK engines 1965-73

49cc horizontal cylinder 1-speed, automatic clutch

 

 

 

 

 

 

 

GM engine (Gentlemen Monomarcia 49cc) is on the 1965-69 Benelli Gentlemen (Italy model), father of the Benelli G2. It is also on the 1969 Benelli Maverick (US model), a front-gas-tank version of the Gentlemen. Notice the 1967 spelling of Gentlemen, not Gentleman. The Gentlemen spelling appears in several late 60’s official publications. 1970 official brochures said Gentleman. See Benelli’s with G2, G2K engines. Here we will use Gentlemen for 1960’s and Gentleman for 1970’s. 

The GM engine has a Dansi MDP44 magneto and front-facing Dellorto SHA 14/9 carburetor. It does not have internal pedals. Instead both motor and pedal chains are on the left side, very unusual.

The Gentleman with pedals had a Domino left control with a start lever, instead of a left twist grip start control like the 1965-69 Wards Riverside had. It is visible in the photo. So it’s in bicycle mode all the time, until you pull the start lever.

GK (Gentlemen Kickstart 49cc) engines are on US-model mini-cycles. The kick models do not have pedals or a pedal chain.  The GK and GK-65 engines have a two-piece transmission cover, different than a GM one-piece. They do not have pedals or a pedal chain.

USA mini-cycles with GK and GK65 engines have Dansi ADP244S magnetos and front-facing carburetors, Dellorto SHA 14/12.

 

GM partial parts list:

00#  price 0 1980# 0000 1970# 00000 description        specs
001 $10.0 ‌ 70.09.30.10 G244/20 start cable for lever control 1L 52 x 57″
001 $00.0 ‌ 70.09.30.10 G244/20 146, 147, 148, 149, 150 not included
002  $00.0 00.00.00.00 G29/A carburetor SHA 14/12 
050  N/A     00.00.00.00 N14 magneto assembly Dansi MDP44 82/110 x 94
059  $4.00 ‌96.50.61.05 G7483 cylinder stud M6 x 105
060  $0.20 ‌95.00.02.06 MU332 head washer ∅6
061  $0.30 ‌92.60.22.06 MU280 head & ex. nut M6
067  $0.00 00.00.00.00 G7019 piston bushing
076  $45.0 70.06.04.00 G7346 piston bare dome top hi-comp use #165
077  $0.00 48.06.12.70 G7018 piston pin ∅12 x ?
079  $10.0 ‌48.06.08.70 G7347 0 piston ring Std 40.0 x 1.5 GN
079  $22.0 48.06.08.72 G7347/2 piston ring 1os 40.2 x 1.5 GN
079  none   48.06.08.74 G7347/4 piston ring 2os 40.4 x 1.5 GN
079  $16.0 48.06.08.76 G7347/6 piston ring 3os 40.6 x 1.5 GN
080  $9.00 ‌48.02.48.70 N23 base gasket
084  $12.0 ‌48.02.20.70 G7010 head gasket ∅41
086  $4.50 ‌00.00.00.00 N183 spark plug = NGK BR5ES
088  $2.00 00.00.00.00 UI7496 exhaust stud M6 x 26
090  $65.0 ‌70.06.02.20 G7346/C   piston assy Std 40.0 x 17-12-18 GOL
090  N/A     70.06.02.22 G7346/C2 piston assy 1os 40.2 x 17-12-18
090  N/A     70.06.02.24 G7346/C4 piston assy 2os 40.4 x 17-12-18
090  N/A     70.06.02.26 G7346/C6 piston assy 3os 40.6 x 17-12-18
092  $6.00 00.00.00.00 G7096 spark plug cap plastic
093  N/A     00.00.00.00 SD462/3 stator plate ∅94 for 01.3239 points
094  N/A     48.70.95.70 G221/11 lubricating felt
095  N/A     35.70.79.00 G221/3 points and cond. screw
096  48.70.86.70 G26/2 = G221/6 condenser M17T 07.0074 0.28 μf, ∅18 x 21 photo
097  N/A     00.00.00.00 N14B internal spark coil
098  00.00.00.00 SD462/2 points 01.3239 photo
099  $0.40 70.71.89.20 G221/8 thin lock washer ∅4 x 7 x 0.5
100  $1.20 35.71.57.50 G221/7 coil screw M4 x 25 slot
101  N/A     00.00.00.00 N14/C lights coil
102  N/A     00.00.00.00 N14/A flywheel Dansi MDP44 82 id x 110 od
146 $0.50  48.80.18.70 UI7191  start cable cap subst.  for 1L F5C photo
147 $4.00  48.80.25.70 G10       start cable spring subst. 6.5-7.0 id x 60-75
148 $3.00  48.80.24.70 M277     start cable pinch bolt for 1L P20 photo
149 $3.00  70.62.69.20 G000     start lever adjuster   for 1L A3a photo
150 $4.00  00.00.00.00 G000     Domino start lever anchor pin D14a

 

 

Benelli models with GK65 engines 1969-73

59cc horizontal cylinder 1-speed, automatic clutch

 

 

 

 

 

 

 

 

GK65 engine: (Gentlemen Kickstart 59cc) engines are on 1970-73 US-model mini-cycles. The model names say “65” but the actual size was 59cc, not 65cc. The bore and stroke are 44 and 39 mm, so (44/2)*(44/2)*3.14*39/1000 = 59.27 cc. The GK and GK-65 engines have a two-piece transmission cover, different than a GM one-piece. They do not have pedals or a pedal chain.

These have Dansi ADP244S magnetos and front-facing carburetors, Dellorto SHA 14/12. 

 

 

GK65 partial parts list

00#   price   1970#    description      specs
071  none   G244/26  start cable
o1A  none   G244/27  start cable
072  none   G10  start spring
073  $3.00 N277  start pinch bolt P20 photo
050  $0.30 MU280  head & ex nut M6
072  none   N134  magneto complete  Dansi ADP244S  photo
B82  none   G421  piston bare ∅44 use #165
083  $8.00 G424 piston pin ∅12 x ?
084  $1.00 MU339 piston clip ∅12
085  $10.0 G591    piston ring Std 44.0 x 1.5 GN
085  none   ‌G591/2 piston ring 1os 44.2 x 1.5 GN
085  none   ‌G591/4 piston ring 2os 44.4 x 1.5 GN
085  none   ‌G591/6 piston ring 3os 44.6 x 1.5 GN
105  none  ‌B1348/2 spark plug = NGK BR6ES
108  none   ‌G422 head gasket ∅45
110  $4.00 G7483 cylinder stud M6 x 105
111  $0.20 MU332 washer M6
112  none   ‌N316 base gasket
117  $2.00 UI7496 exhaust stud M6 x 26
121  $00.0 G29/A   carburetor SHA 14/12
152  none   N134/A  flywheel ∅82 ∅110 aluminum Dansi ADP244S
153  none   G314/A  lighting source coil
154  none   G221/2  ignition source coil (with external ground wire that powers brake light)
155  $1.20 G221/7  coil screw M4 x 25 slot
156  $0.40 G221/8  thin lock washer  ∅4 x 7 x 0.5
157  none   SD401  screw set
158  $21.0 CS0004  points #01.3239  photo  (gap 0.015″)
159  $15.0 G221/6  condenser #07.0074  0.28 μf, ∅18 x 21 photo
160  $1.50 G221/3  points screw M4 x 8 small slot
161  none   SD426/3  stator plate bare ∅94  2+3 hole
165  none   ‌G421/C   piston assy Std 44.0 x 17-12-18
165  none   ‌G421/2C piston assy 1os 44.2 x 17-12-18
165  none   ‌G421/4C piston assy 2os 44.4 x 17-12-18
165  none   ‌G421/6C piston assy 3os 44.6 x 17-12-18

 

 

 

Benelli models with FA engines 1960?-75

49cc vertical cylinder 1-speed automatic clutch.

 

FA engine (Frizone Automatico) engine had an upright slanted forward cylinder, not horizontal like the GM or G2 motor. It was rounded everywhere, not mostly square like the 1970’s motors. The pedals were part of the motor unit, not separate like on the G2.

The 1965-69 Wards Riverside 150D and 250D mopeds, the 1974-75 Benelli 3FA moped. and 1976 Benelli Export FA had FA engines. The left grip was a twist grip that operated the starting clutch. Normally the bike is in pedal mode. Twist the left grip back to engage the motor for starting. Once started it is under automatic clutch control, engaged above 10mph and in neutral below about 5mph. The hand levers are hand brakes, left rear and right front. The controls are early Domino. Throttle is a wrap-around type.

 

 

The Benelli FA and M4 cylinders are the same as the Benelli M4S cylinder on the 50cc Fireball, except the porting. The Fireball cylinder has a 17mm (for the Dellorto UA16 carb) intake port at the flange, while the FA (and M4?) have a 10mm intake port hole (for a Dellorto 14/12 carb). The exhaust port is taller and wider on the Fireball. The transfer ports and intake port are also wider and maybe taller.

The 1960’s Benelli FA, M4 and M4S piston is the same as the 1970’s Benelli G and G2 piston. They are all 40.0mm bore, 39 stroke, and use the same rings 40 x 1.5 FG. The exhaust has a screw-on mount, with M34-1.5 male thread on the exhaust, female on the cylinder.

 

---

1965-67 Wards Riverside (Benelli FA engine)

Mopeds with manual starting clutches usually have an extra hand lever below the left handlebar, for starting. Instead of a start lever, Benelli has a start grip. You pedal the bike, then twist the left grip, to engage the engine. Then let go once the engine has started.

Date: The date of manufacture is not stated on the ID plate or anywhere else on the frame. On 250D models with original speedometers, there may be a date stamped in ink, on the bottom of the speedometer shell. Remove the speedometer to see it.

Here is a link to the 1965 Wards Riverside Service Manual

 

Wards Product Codes 

FFA-61-14001A  1965-66 Riverside 250-D 1.5hp red/wht long seat 2.25-18
FFA-61-14018A  1965-66 Riverside 150-P 1.5hp red/wht solo  seat 2.25-18
FFA-61-14001B  1966-67 Riverside 250-D 1.5hp red/wht long seat 2.25-18
FFA-61-14018B  1966-67 Riverside 150-D 1.5hp red/wht solo  seat 2.25-18

 

 

 

 

 

 

 

 

 

 

 

 

---

This is an entire 1965-67 Montgomery Ward Riverside moped parts manual, condensed, colorized with prices, availability and specifications added. It is combined with a 1976 Benelli Export FA engine parts illustration and parts list. In ten years not much changed except the starting clutch and maybe something else.

On parts that have different sizes, the 1976 part numbers say the size in millimeters, here colored in orange.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FA engine complete parts list:

66# 76#  price  0 ’76 part#    ’66 part#    description   specs
001 000  $0.00  00.00.00.00  MU1476  coil bolt M6 x ??
002 073  $0.20  95.00.02.06  MU332  washer M6
003 074  $0.30  92.60.22.06  MU280  nut M6-1.00
004 000  none.  00.00.00.00  I9161  ignition coil ’66 round can type
000 C72  $78.0 71.71.65.10  G000   ignition coil ’76 H79 E type Dansi photo
000 C72  $43.0 71.71.65.10  G000   same but good-used, both sold “as is”
005 000  $3.00  00.00.00.00  I9161/1  ground wire
006 119  $4.00  96.50.61.05  G7483  cylinder stud M6 x 105
007 047  none   35.71.70.00  B1348/2  spark plug NGK B6ES now BR6ES
008 C86  $6.00  45.71.74.00  G6076  spark plug cap modern plastic 
009 C73  $2.00 823.91.00.70 G25  spark plug wire 12″
010 043  none.  70.11.50.10  G7350  intake pipe ∅18 od
011 046  $0.00  70.11.55.00  G7015  intake gasket
012 045  $0.25  95.02.11.06  MU432  lock washer M6

013 000  $3.00  00.00.00.00  G7496  intake stud M6 x 30
000 044  $0.70  98.62.23.20  00000  intake bolt M6 x 20 allen 
014 005  none.  48.09.39.70  G7947  starter lever-shaft ∅11
015 007  none.  48.08.76.70  G7948 start lever inner
016 008  $2.00  90.27.10.11  G7949  start shaft retaining ring external ∅11 x 1
017 006  $0.00  90.70.61.07  G4  start shaft seal ring 10 id ?
018 019  none.  48.08.19.70  G7944/1  adjustment screw
019 017  none.  48.08.20.70  G7944/2  clutch shoe
020 018  none.  48.08.35.70  G7944/3  clutch shoe spring
021 009  none.  48.08.55.70  G7946  clutch push rod ∅6 x 31
022 000  none.  00.00.00.00  G7945  thrust cap
023 015  $1.50  90.27.10.15  MU3813  retaining ring external ∅15
024 020  $1.50  90.27.10.10  MU8153  shoe retaining ring external ∅10
025 000  none.  00.00.00.00  G7944/5  washer M10
026 012  none.  48.08.26.70  G7944/6  starter clutch plate
027 016  $0.00  48.08.16.70  G5  washer 16 id?
000 011  $6.00  48.02.32.70  G418  retaining ring ∅95 x 2.0
028 021  none.  69.08.46.00  G7944/7  clutch drum with gear 
029 048  none.  70.02.24.00  G7825  cylinder head
030 049  $12.0  48.02.20.70  G7010  head gasket
031 050  none.  70.02.03.10  G7438  cylinder
032 051  $0.00  70.02.08.00  G7011/1  base gasket
033 033  $5.00  90.27.20.42  MU7062  retaining ring internal ∅42 x 1.7
034 034  $10.0  90.20.10.20  MU7056  right drive shaft bearing 6302 15-42-13
035 035  none.  70.21.36.10  G7987  secondary gear shaft
036 029  $0.00  91.60.03.37  MU3817  clutch woodruff key
037 037  none.  70.21.45.10  G7774  secondary shaft gear
038 038  $10.0  90.20.11.20  MU3061  left drive shaft bearing 6302Z 15-42-13 
039 039  $7.50  90.40.28.38  MU2265  drive seal 28-38-7
040 040  none.  70.33.05.10  G7340  drive sprocket
041 041  $0.00  70.21.93.00  G73440  sprocket nut
042 025  $0.00  48.21.93.70  L837  gear shaft nut
043 026  none.  70.21.58.10  G9  large primary gear
044 034  $10.0  92.20.10.20  MU7038  right gear shaft bearing 6003 17-35-10
045 035  none.  70.21.36.10  G7988 gear shaft
046 037  none.  70.21.45.10  G7039  small primary gear
047 038  $7.00  92.20.11.20  L746  left gear shaft bearing 6201  12-32-10
048 032  none.  70.01.42.10  G7777  left case plug
049 060  $1.20  98.62.03.45  M79  clutch cover screw M6 x 45 allen black
050 059  $0.80  98.62.03.25  MU1414/1  mag. cover screw M6 x 25 allen black
051 061  none.  70.00.16.10  G1  clutch cover
052 064  none.  70.00.49.10  G7092/1  dip stick
053 063  $0.00  70.08.38.10  G8  bushing with lip
054 070  $0.00  35.00.20.00  UI7080  dowel tube ∅6 ∅8? x 20?
055 059  $0.80  98.62.03.25  MU1224 case screw M6 x 25 allen black
056 067  none.  48.00.46.71  L492  breather
057 068  $0.00  90.71.40.80  L493  seal washer
058 069  none.  70.00.10.00  G7861  right case half
059 077  none.  90.40.19.27  MU7778  right crank seal 19-27-6   
060 078  $0.00  90.20.14.16  G7365  L & R crank bearing 6004 C3   20- 42-12
061 082  none.  70.06.44.10  G7943  right crank half
062 052  $10.0  48.06.08.70  G7347  piston ring 40.0 x 1.5 GN
062 000  $22.0  48.06.08.72  G7347/2   piston ring 1os 40.2 x 1.5 GN
062 000  none    48.06.08.74  G7347/4   piston ring 2os 40.4 x 1.5 GN
062 000  $16.0  48.06.08.76  G7347/6   piston ring 3os 40.6 x 1.5 GN
063 053  $47.0  70.06.04.00  G7346  piston bare (substitute)
064 056  $1.50  90.27.20.12  L339  piston clip ∅12
065 000  none.  00.00.00.00  G7116  connecting rod bare, for bushing
000 057  none.  48.06.16.70  G0000  connecting rod bare, for bearing
066 000  $0.00  00.00.00.00  G7019  piston pin bushing ∅12 ∅14?
066 054  $0.00  95.25.20.12  00000  piston pin bearing ∅12 ∅15?
067 055  $10.0  48.06.12.70  G7018  piston pin ∅12
068 000  none.  00.00.00.00  MU7112  rod bearing rollers
069 000  none.  00.00.00.00  G7111  rod bearing cage
000 058  none.  92.25.20.12  00000  rod bearing assembled
070 083  none.  70.06.50.00  G7115  crank pin
071 084  none.  70.06.43.00  G7119  left crank half
072 081  $2.00 ‌ 91.60.02.38  G7274  flywheel woodruff key M81 2.0 x 3.7
073 085  none.  90.40.15.25  G7342  left crank seal 15-25-5
074 088  $0.00  91.55.10.70  UI281  grommet
075 087  none.  70.00.07.10  G7862/2  left case half
076 000  $0.70  00.00.00.00  MU7084  lock washer M4 toothed
077 089  $1.30  98.20.04.10  MU1147  stator plate screw M4 x 10 slot
 Dansi magnetos: all ∅82 id rotors, ∅94 od stators xx  IIN means Internal spark, Int. ground, No brake light
66# 76#  price  0 ’76 part#    ’66 part#  xxxxxx  wires xxx EEB means External spark, Ext. ground, Brake light
078 000  none.  00.00.00.00  G221   magneto ign lts gnd ASL205NS ∅110 ⇐ EEB ’65-67 Wards Riverside
078 000  none.  00.00.00.00  G7094 magneto ign lts xxx MSL105 xx ∅110 ⇐ IIN ’65-73? Export FA
000 090  none.  70.71.24.00  G000   magneto ign lts xxx 100844   xx ∅103 ⇐ EIN ’73-80? Export FA
079 091  $1.80  95.10.12.75  UI7091  flywheel washer ∅9 ∅17 inner teeth
080 092  $0.00  92.75.00.73  I9020  flywheel nut M8-1.0 x ?
081 093  none.  70.00.02.10  G7767  magneto cover
082 000  none.  00.00.00.00  M93  MW name plate
083 000  none.  00.00.00.00  B1219  name plate rivet
084 098  none.  70.12.08.00  G7840  exhaust header pipe
085 096  $0.00  70.12.03.00  G7009  exhaust seal ring ∅30? od
086 097  none.  70.12.02.00  G7763  exhaust nut M34-1.50
087 099  none    70.12.69.00  G7841/1  muffler clamp
088 100  none.  70.12.30.00  G7841  muffler 32 id rear
089 000  $2.00  00.00.00.00  MU614C  muffler bolt w/nut M8 x 15
090 000  $33.0  00.00.00.00  G7918/2  baffle 31.8 x 300 (Tomos substitute)
091 000  none.  00.00.00.00  G7918/2  baffle screw
092 106  $2.00  91.77.00.92  G7085  pedal pin ∅9.0
093 000  $18.0  00.00.00.00  G7087/C  pedal set replacement photo
094 000  $35.0  00.00.00.00  G7923/C  pedal crank set 502 replacement
094 105  none   70.26.15.10  G0000  right pedal crank 502R rep. (needs high offset)
094 117  $20.0  70.26.15.11  G0000  left pedal crank 502L replacement
095 000  none.  96.50.60.80  G105    case stud M6 x 80 use bolt
000 071  $1.20  98.62.03.70  G0000  case bolt M6 x 70 allen
096 000  none.  96.50.60.65  G7013  case stud M6 x 65 use bolt
000 072  $1.20  98.62.03.55  G0000  case bolt M6 x 55 allen
097 070  none.  35.00.20.00  G7356  spacer ∅6 x 20?
098 000  none.  00.00.00.00  MU7075  bushing circlip ∅20? external
000 108  $1.50  90.27.11.16  00000  pedal shaft circlip ∅16 external
099 000  none.  00.00.00.00  G7110 kick-starter right bushing with clip groove
100 107  none.  90.40.16.25  MU3796  pedal shaft seal 16-25-5
101 110  none.  70.26.67.00  G7055  pedal shaft inner spacer ∅17
102 109  $0.00  70.26.74.00  G7354  pedal shaft washer
103 112  none.  70.26.66.10  G368  pedal shaft gear
104 113  none.  70.26.65.10  G7358  engage dog
105 114  none.  70.26.52.00  G7072  engage dog spring
106 115  none.  70.26.53.11  G7348  pedal shaft
107 036  $0.00  70.01.76.00  G7138  case stud M6 x ??
108 000  none.  00.00.00.00  G7370  pedal shaft bushing
109 079  $0.00  90.71.40.62  L417  drain plug seal washer 
110 080  $0.00  98.05.43.10  MU234  drain plug
111 000  none.  00.00.00.00  G221/2  ignition source coil (with external ground wire for brake light)
111 000  none.  00.00.00.00  G0000   internal spark coil for MSL105
000 157  none.  70.71.51.20 G0000  ignition source coil for 100844
112 156    48.70.86.70  G221/6  condenser #07.0074  0.28 μf, ∅18 x 21 photo
113 164  $1.50  35.70.79.00  G221/3  points screw M4 x 8 small slot
114 000  none.  00.00.00.00  G221/1  stator plate bare ∅94  2+3 hole
000 155  none.  70.70.22.20  G0000  stator plate bare ∅94  2+3 hole for 100844
115 000  none.  00.00.00.00  G221/4  points #01.3236 photo  (gap 0.015″)
000 159  none.  70.70.88.20 $16.0  points #M14 for 100844
116 000  none.  00.00.00.00  G221/10  flywheel ∅82 ∅110  Dansi ASL205NS photo 
000 162  none.  70.71.16.20  GG0000  flywheel ∅82 ∅103  Dansi   100844  photo
117 000  none.  00.00.00.00  G221/9  lighting coil 6V 28W = 21W head + 5W tail + 2W speedo
000 158  none.  70.71.50.20 G0000  lighting coil for 100844
118 163  $0.40  70.71.89.20  G221/8  thin lock washer  ∅4 x 7 x 0.5
119 000  $1.20  35.71.57.50  G221/7  coil screw M4 x 25 slot
000 161  $0.00  35.71.55.00  00000  coil screw M4 x ?? slot
120 164  none.  48.71.57.70  G221/5  screw set
121 160  none.  48.70.95.70  G221/11  lubricating wick (felt)
122 100  $65.0  70.06.02.20  G7346/C  piston complete modern 40.0 x 17-12-18 GOL made in Italy
122 100  none.  70.06.02.22  G7346/C2  piston complete  1st  o.s 40.2 x 17-12-18
122 100  none.  70.06.02.24  G7346/C4  piston complete 2nd o.s 40.4 x 17-12-18
122 100  none.  70.06.02.26  G7346/C6  piston complete 3rd o.s 40.6 x 17-12-18
123 000  none.  00.00.00.00  G7116/C  connecting rod assy for bushing
000 154  none.  70.06.40.10  G00000  connecting rod assy for bearing
124 042  $70.0  70.11.26.00  G29  carburetor Dellorto SHA 14/12 genuine, modern (not all metal)  
124 000  $75.0  00.00.00.00  G29  with correct #58 jet clamp sleeve, air cover, screen and clip
125 146  $5.00  49.93.87.00  DE1104/C  throttle cable adjuster w/nut A13
126 145  $2.00  43.93.28.00  DE3318  top screw M4-0.75 x 14
127 135  $16.0  43.93.50.00  DE6110/C  carb top assy good-used
128 142  $10.0  43.93.75.00  DE6108  throttle slide #1 good-used
129 136  $3.00  43.93.22.00  DE6111  top gasket
130 140  $2.00  43.93.63.00  DE3606  idle screw spring
131 141  $4.00  43.93.86.00  DE6140  idle speed screw
132 126  $2.00  46.93.86.00  DE6305  carb clamp screw M6
133 127  $2.50  43.93.76.00  DE6304  clamp screw nut M6
134 000  $0.00  00.00.00.00  DE3724  intake pipe restrictor/reducer ∅12-to-10 ?
135 134  $5.00  46.93.89.00  DE6448  clamp sleeve ∅20-to-18
136 123  $2.00  46.93.47.00  DE6123  float gasket round but goes in D-shaped groove
137 122  $5.00  43.93.44.00  DE6107  float bowl metal used
138 121  $4.00  43.93.45.00  DE3598  float bowl screw M4-0.75 x 18
139 133  $5.00  35.93.57.00  DE1486/58  main jet 58
140 125  $2.00  43.93.31.00  DE4560  float hinge pin Ø2.0 x 16.5 
141 124  $18.0  43.93.30.00  DE6122  float white hollow plastic 3.5 grams
142 132  $10.0  43.93.48.00  DE2838  float needle valve with  viton rubber tip
143 131  $5.00  00.00.00.00  DE6109  fuel filter disk
144 130  $8.00  00.00.00.00  DE6106  fuel inlet banjo, metal angled out, good-used
144 130  $7.00  00.00.00.00  DE9249  fuel inlet banjo, black plastic angled
145 129  $1.50  00.00.00.00  DE3385  seal washer 5 x 9
146 128  $5.00  00.00.00.00  DE4190  fuel inlet screw M5-0.75 x 15
147 148  $10.0  70.93.10.20  DE6183  air cover #53051a 
147 148  $17.0  00.00.00.00  DE0000  air cover set #53051 3-piece 53051 a,b,c
148 147  $9.00  43.93.25.00  DE6117  air filter metal #53051c
149 144  $3.00  00.00.00.00  DE6159  air filter gasket
150 139  $3.00  00.00.00.00  DE5417  choke pivot screw
151 138  $3.00  00.00.00.00  DE6105  choke spring
152 137  $7.00  00.00.00.00  DE6114  choke plate-lever medium
153 149  $6.00  70.93.42.20  DE6235  air cover clip #53051b
154 076  $0.60  92.60.22.08  MU187  nut M8
155 075  none.  96.50.80.98  H8256  case stud M8 x 98
156 086  none.  70.00.09.00  G7830  case gasket
157 065  none.  70.00.06.00  G7835  clutch gasket
158 024  none.  70.07.03.10  G3  clutch drum bushing
159 000  none.  00.00.00.00  G244/3  start cable for twist control 2T 52 x ?? use 1T
000 001  none.  00.00.00.00  G0000   start cable for lever control 2L 52 x ?? use 1L
159 000  $12.0  00.00.00.00  G0000   start cable for twist control 1T 52 x 57″
000 001  $10.0  70.09.30.10  G244/20 start cable for lever control 1L 52 x 57″
000 C41  $3.00  70.62.69.20  G7/4 00 adjuster for 1T,1L start cable A3a see below 41
000 C35a $4.50  00.00.00.00  Gooo    cable anchor pin D14a substitute image see 35a
000 002  $3.00  48.80.24.70  M277    pinch bolt for 1T,1L start cable P20 photo
000 004  $0.50  48.80.18.70  UI7191 stop cap   for 1T,1L start cable F5C photo 
160 003  $4.00  48.80.25.70  G10 oo  start cable spring subst. 6.5-7.0 id x 60-75
161 000  none.  00.00.00.00  G7944/C  clutch complete ’66
000 165  none.  70.08.00.10  000000   clutch complete ’76
162 000  none.  00.00.00.00  G79  crankshaft with piston pin bushing
100 152  none.  70.06.40.10  000  crankshaft with piston pin bearing
163 150  none.  70.99.90.20  G242/1  gasket set
164 151  none.  69.99.95.01  G243/1  seal set 5-piece
164 151  none.  69.99.95.01  G243/1  19-27-6, 15-25-5, 28-38-7, 16-25-5, 16-25-5
165 000  $0.00  00.00.00.00 G29/1  throttle cable 2-ended (for wrap-around throttle)
000 120  $0.00  35.11.75.40  00000  throttle cable 1-ended (for slide-type throttle)
166 F32  $1.00 823.94.50.80 G7187/3  fuel hose 12″ clear 3/16″id 5/16″od

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The rear sprocket has a 36.5mm centering hole (not 39.5), and a 62mm bolt hole spacing diagonally.

 

 

 

 

 

 

 

 

 

 

 

 

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  $4.50 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 $4.50 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

 

 

 

 

 

 

 

 

 

 

 

 

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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  $4.50 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  model  0  carb   covers    case
1956 part numbers, F.B. Minarelli
01. ’63-66? P4 0000 ∅12    round♦   round♦
10. ’66-67? P4S 000 ∅19    round♦   round♦
01. ’66-70? P4SS 00 ∅20    round♦   round♦
02. ’65-70? P4-55 0 ∅20    round♦   round♦ (kits)
02. ’65-70? P4-50 0 ∅20    round♦   round♦ (racing)
02. ’65-69? P4-60 0 ∅20    round♦   round♦ (racing)
1967 part numbers, Motori Minarelli
03. ’67-70? P4S  12 or 19    round♦   round♦
03. ’69-72? P4S-70  ∅19    round♦   round♦
04. ’69-73? P6 0 12 or 19 angular♦   angular♦
05. ’70-77? P6-4 12 or 19 angular♦   angular♦ (pedals)
1970 part numbers
06. ’71-73? P4V  00  ∅12 angular♦   round♦
07. ’71-77? SP6 00  ∅20 angular♦   angular♦ (racing)
08. ’71-79? P4E  12 or 19 angular♦   angular♦
08. ’73-76? P4E-70  ∅19 angular♦   angular♦ 
08. ’73-76? P6E-70  ∅19 angular♦   angular♦ 
99. ’72-80? P4CS     ∅12 angular♦♦ angular♦ 
08. ’73-79? P6CS     ∅12 angular♦♦ angular♦
10. ’74-82? P4R 00 ∅12 angular♦♦ angular♦
09. ’74-80? P6R 00 ∅12 angular♦♦ angular♦
11. ’78-82? P6CC    ∅18 angular♦   angular♦

 

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.

 

 

 

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1. 1963-70 Minarelli P4, P4S

P4 has a 4-speed, foot-shift, manual clutch, kick start.

’63?-66? Minarelli P4 (ovalino) 47.7 cc (38.0 x 42)
1956# Minarelli# qty MMI# price  description.
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 $1.00 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 00.0000.0 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 A2-16 49.0124.8 1 4720  none  key 3.0 x 3.7  use A1-25 #M85
0 A2-17 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
0 A2-19 51.0203.9 2 4770 $10.0 right crank bearing 15-35-11 #6202
0 A2-20 53.0506.9 2 4710 none  crankshaft seal 17-35-8
0 A2-21 00.0000.0 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 A2-25 00.0000.0 1 0000  none  pinion key
 A24-10 38.0005.0 1 0000  none  crankshaft, pork chop, width 32
 A24-10 38.0017.0 1 0000  none  (rod end Ø14.95 x 13 for bushing)
 A24-11 00.0000.0 1 0000  none  right crank half
 A24-12 00.0000.0 1 0000  none  left crank half
 A24-13 00.0000.0 1 0000  none  crank pin (asse) Ø16 x 31
 A24-14 00.0000.0 1 0000  none  roller bearing Ø16 Ø22 x 12
 A24-15 38.0060.7 1 0000  none  connecting rod with bushing
0 A42-1 00.0000.0 1 0000  none  pinion gear 13T
0 A42-2 00.0000.0 1 0000  none  pinion gear nut
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)
0M2-19 82.0000.0 1 0000  none magneto ⇒
0M2-19 82.0001.9 1 0000  none 2-wire, internal spark coil, 6V 18w
0M2-27 00.0000.0 1 0000  none exhaust (scarico) M28 thread
0M2-40 00.0000.0 1 0000  none  head 38.0 (testa) small rounded
0M2-44 00.0000.0 1 0000  none intake pipe 12 id x 18 od
0M2-45 00.0000.0 1 0000  none  carb SHA14/12, F27 cover use 15.0024.9
0M2-45 15.0024.9 1 5650 $70.0 SHA14/12 jet 52  US 2.0 hp
0M2-45 00.0000.0 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
M00-00 31.0010.6 1 0000 $12.0 air cover F27 large sloping
M00-00 49.0018.0 1 5880 $4.00 air cover clamp with screw
M00-00 15.0360.6 1 6360 $5.00 6109 fuel filter
M00-00 15.0490.6 1 6430 $2.00 6123 float gasket
M00-00 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
M00-00 15.0701.6 1 6550 $10.0 2838 float needle
M00-00 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14

The pinion gear has a ∅13 cone center hole.

 

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’66-67? Minarelli P4S Sport (ovalino) 49.6 cc (38.8 x 42)
1956# Minarelli# qty MMI# price   same as P4 except:
0 A24-7 68.0115.0 2 0000 $10.0 piston ring Ø38.8 x 1.5 GN
0 A24-7 71.0805.0 1 4640  none  piston ring set
 A24-31 71.0410.0 1 4540 none  piston kit 38.8 ball top
 A24-31 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
 A24-31 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
 A24-31 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
 A24-31 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
0M2-13 49.0509.0 4 0000 $3.50 cylinder stud M6 x 109 (110)
M16-12 00.0000.0 1 0000  none  magneto 6V 18w internal spark
M24-12 77.0152.0 1 0000  none  head (testa) 38.8 Sport QUADRO
M24-13 19.0306.0 1 0000  none  cylinder iron 38.8 M32 ex thread
M24-15 00.0000.0 1 0000  none  intake pipe 19 id x 24 od
M24-21 00.0000.0 1 0000  none  exhaust (scarico) M32 thread
M24-25 00.0000.0 1 0000  none  carburetor Dellorto UA19S

 

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.

’66-70? Minarelli P4SS Super Sport (ovalino) 49.6 cc (38.8 x 42)
1956# Minarelli# qty MMI# price   same as P4S except:
0 A24-32 38.0000.0 1 0000  none  crankshaft, full circle, width 32, cone 13
0 A24-10 38.0000.0 1 0000  none  (rod end Ø15.00 x 14 for bearing)
A42-101 00.0000.0 1 0000  none  rod bare (biella)
A42-104 51.0301.9 1 4475 $9.00 piston bearing Ø12 Ø15 x 15
0M24-27 15.0000.0 1 0000  none  carb Dellorto UB20S with bell (cornetto)
0M31-26 15.0000.0 1 0000  none  intake pipe 20 id x 23 od
0M31-??  77.0161.0 1 0000  none  head (testa) 38.8 Sport RECORD

 

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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

 

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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 1973. 

 

’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.

 

 

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3. 1967-73 Minarelli P4S, P4S-70

’67-70? Minarelli P4S (ovalino) 49.6 cc (38.8 x 42)
1967# Minarelli# qty MMI# price  description.
012050 71.0410.0 1 4540 none  piston kit 38.8 ball top
012050 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
012050 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
012050 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
012050 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
012054 68.0115.0 2 0000 $10.0 piston ring Ø38.8 x 1.5 GN
012054 71.0805.0 1 4640  none  piston ring set
012067 51.0132.7 1 4470 $5.00 piston pin bushing ∅11.7 ∅15 x 13
 A24-10 51.0132.7 1 4470  none  (must be reamed after installation)
112000 38.0005.0 1 0000  none  crankshaft, pork chop, width 32
112000 38.0017.0 1 0000  none  (rod end Ø14.95 x 13 for bushing)
112002 77.0152.0 1 0000  none  head (testa) 38.8 Sport QUADRO
112004 70.0110.0 1 0000  none  right case P4 rounded
112005 70.0610.0 1 0000  none  left case P4 rounded
162003 19.0306.0 1 0000  none  cylinder iron 38.8 M32 ex thread
162010 49.0509.0 1 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
162174 53.0302.0 1 0000 none  base gasket ∅44 40×40
811901 00.0000.0 1 0000  none  carb Dellorto UA18? side-float
912301 00.0000.0 1 0000  none  magneto 6V 18w internal spark
000000 71.0611.7 1 0000  none  gasket set P4-SP iron

Late P4S changes: This late ’67-70 P4S is 95% the same as early ’65-67 P4S. Only some kick start and gearshift parts are different. This is evident from the illustrations and part numbers. 

Late P4S was on:
1967-72 Italjet X50, CX50, SX50
1969-72 Indian Papoose, JC54 and SE54 (made by Italjet)
early 70’s Fantic Diablo, Chopper, others

 

 

 

 

 

 

’69-73? Minarelli P4S-70 (ovalino) 66.8cc (45.0 x 42)
1967# Minarelli# qty MMI# price  description
811901 00.0000.0 1 0000  none  carburetor Dellorto SHB 19/19
000000 71.0485.7 1 0000  none  piston ∅45.0 dome top 1.5 rings

P4S-70 changes: Only the 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. 

 

 

 

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4. 1969-73 Minarelli P6

’69-75? Minarelli P6 49.6 cc (38.8 x 42)
1967# Minarelli# qty MMI# price  description.
012050 71.0410.0 1 4540 none  piston kit 38.8 ball top
012050 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
012050 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
012050 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
012050 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
012054 68.0115.0 2 0000 $10.0 piston ring Ø38.8 x 1.5 GN
012054 71.0805.0 1 4640  none  piston ring set
162000 38.0021.0 1 0000  none  crankshaft, full circle, width 36
162000 38.0017.0 1 4465  none  rod Ø15.00 x 14 for needle bearing
162004 70.0130.0 1 0000  none  right case P6 angular for cyl. ∅44
162005 70.0630.0 1 0000  none  left case P6 angular for cyl. ∅44
112002 77.0152.0 1 0000  none  head (testa) 38.8 Sport QUADRO
162002 77.0161.0 1 0000  none  head (testa) 38.8 Sport RECORD
162003 19.0306.0 1 0000  none  cylinder ∅38.8 M32 ex thread
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
162041 51.0301.9 1 4475 $9.00 piston bearing Ø12 Ø15 x 15
162174 53.0302.0 1 0000 none  base gasket ∅44 40×40
812205 15.0016.9 1 0000  none  carb SHA14/12 jet 52 cover F27
812205 15.0024.9 1 5650 $70.0 carb SHA14/12 jet 52, no cover
812205 15.0000.6 1 0000 $0.00 ∅18 sleeve, no cable pipe
000000 31.0010.6 1 0000 $12.0 air cover F27 large sloping
000000 49.0018.0 1 5880 $4.00 air cover clamp with screw
000000 15.0360.6 1 6360 $5.00 6109 fuel filter
000000 15.0410.6 1 6380 $5.00 1486/52 main jet #52
000000 15.0490.6 1 6430 $2.00 6123 float gasket
000000 15.0601.6 1 6530 $7.00 9249 inlet banjo black angled
000000 15.0701.6 1 6550 $10.0 2838 float needle
000000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
912401 82.0014.9 1 0000  none  magneto Ducati 31.02.39
912401 82.0014.9 1 0000  none  6V 18w internal spark

P6 changes: The center width of the crankshaft, between the crank bearings, increased from 32mm on the P4, to 36mm on the P6. The cases changed from P4 rounded to P6 angular. Last but not least, the transmission gained two more speeds.

 

 

 

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5. 1970-77 Minarelli P6-4

P6-4 has a 4-speed foot-shift transmission, manual clutch with pedals. It was basically a P6 with two of the gears missing.

’71-77 Minarelli P6-4 (4-speed, convertible to 6)
1967# Minarelli# qty MMI# price  description.
012050 71.0410.0 1 4540 none  piston kit 38.8 ball top
012050 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
012050 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
012050 71.0460.7 1 4560 none  piston kit Ø39.2 (2nd oversize)
012050 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
012054 68.0115.0 2 0000 $10.0 piston ring Ø38.8 x 1.5 GN
012054 71.0805.0 1 4640  none  piston ring set
162000 38.0017.0 1 0000  none  crankshaft, full circle, width 36
162000 38.0017.0 1 4465  none  rod Ø15.00 x 14 for needle bearing
162002 77.0161.0 1 0000  none  head (testa) Sport RECORD
162003 19.0306.0 1 0000  none  cylinder ∅38.8 M32 ex thread
162004 70.0130.0 1 0000  none  right case P6 angular for cyl. ∅44
162005 70.0630.0 1 0000  none  left case P6 angular for cyl. ∅44
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
162041 51.0301.9 1 4475 $9.00 piston bearing Ø12 Ø15 x 15
810000 00.0000.0 1 0000  none  carb Dellorto SHB 19/19D
162174 53.0302.0 1 0000 none  base gasket ∅44 40×40
812205 15.0016.9 1 0000  none  carb SHA14/12 jet 52 cover F27
812205 15.0024.9 1 5650 $70.0 carb SHA14/12 jet 52, no cover
812205 15.0000.6 1 0000 $0.00 ∅18 sleeve, no cable pipe
000000 31.0010.6 1 0000 $12.0 air cover F27 large sloping
000000 49.0018.0 1 5880 $4.00 air cover clamp with screw
000000 15.0360.6 1 6360 $5.00 6109 fuel filter
000000 15.0410.6 1 6380 $5.00 1486/52 main jet #52
000000 15.0490.6 1 6430 $2.00 6123 float gasket
000000 15.0601.6 1 6530 $7.00 9249 inlet banjo black angled
000000 15.0701.6 1 6550 $10.0 2838 float needle
000000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14 
912401 82.0014.9 1 0000  none  magneto Ducati 31.02.39
912401 82.0014.9 1 0000  none  6V 18w internal spark

 

Left, 1981 Safari Commando, Minarelli P6-4
Right, 1975 Fantic Chopper (UK) with P6-4 Sport

 

 

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6. 1971-73 Minarelli P4V

’71-73? Minarelli P4V 49.6 cc (38.8 x 42)
figure Minarelli# qty MMI# price  description
00  15 15.0016.9 1 0000  none  carb SHA14/12 jet 52 F27 use 15.0024.9
00  15 15.0024.9 1 5650 $70.0 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 1486/52 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 19.0306.0 1 0000  none  cylinder ∅38.8 M32  Sport Quadro
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
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
00077 77.0161.0 1 0000  none  head (testa) Sport RECORD
00082 82.0012.9 1 0000  none  magneto Ducati 31.02.30 ∅94   ♦♦
00082 82.0014.9 1 0000  none  magneto Ducati 31.02.39 ∅94   ♦♦
00212 21.0212.0 1 0000  none  clutch cover
00214 21.0214.0 1 0000  none  magneto cover
00381 38.0017.0 1 0000  none  crankshaft (imbiellaggio) ’71-on
00000 00.0000.0 1 4465  none  rod Ø15.00 x 14 for needle bearing
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
00701 70.0110.0 1 0000  none  right case half
00702 70.0610.0 1 0000  none  left case half
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
05670 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
09323 03.0213.0 2 4490 $1.00 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 49.0310.0 1 0000  none  pinion nut
49040 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
49041 49.0313.9 1 0000  none  sprocket nut
49042 49.0317.0 1 0000  none  clutch nut M14-1.0
49084 49.0509.0 4 0000 $3.50 cylinder stud M6 x 109 (110)
49226 49.0841.9 6 0000 $0.50 stator screw M4 x 10 phil-wide

 

Minarelli part numbers changed sometime around 1970.

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

 

 

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7. 1971-77 Minarelli SP6

SP6 changes: SP6 is the racing version of the P6. 

 

 

 

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8. 1971-79 Minarelli P4E

 ‘
’71-79? Minarelli P4E 49.6cc (38.8 x 42, all-iron cylinder)
figure Minarelli# qty MMI# price  description
00  15 15.0029.9 1 0000  none  carb SHA 14/12, F27 cover
00  15 15.0024.9 1 5650 $70.0 SHA14/12 jet 52, no cover
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486/52 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 19.0314.0 1 0000  none  cylinder ∅32 3-bolt
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
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 77.0115.0 1 0000  none  head (testa) EXPORT GHISA
00  82 82.0014.9 1 0000  none  magneto Ducati 31.02.39 2-wire ⇐, ext. spark coil
00821 82.0006.6 1 M14  $16.0 points (ruttore) CEV 04229 = M14
00823 82.0132.6 1 M17T $13.0 condenser Ducati ∅17.9 = M17
00212 21.0232.0 1 0000  none  clutch cover grey
00212 21.0233.0 1 0000  none  clutch cover black
00214 21.0328.0 1 0000  none  magneto cover grey
00214 21.0335.0 1 0000  none  magneto cover black
00381 38.0037.0 1 0000  none  crankshaft cone ∅15 full circle
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
00701 70.0116.0 1 0000  none  right case half for ∅47 cylinder
00702 70.0616.0 1 0000  none  left case half for ∅47 cylinder
05113 51.0301.9 1 4475 $9.00 piston bearing Ø12 Ø15 x 15
05320 53.0306.0 1 0000 none  base gasket ∅47 48×48
05670 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
09323 03.0213.0 2 4490 $1.00 piston pin clip  Ø12
49005 49.0018.0 1 5880 $4.00 air cover clamp with screw
49015 49.0124.8 1 4730 $2.00 woodruff key (chiavetta) #M85 3.0 x 3.6
49037 49.0306.9 4 0000 $1.20 head nut M7 x 7
49039 49.0310.0 1 0000  none  pinion nut
49040 49.0312.0 1 4750 $7.00 flywheel nut M10-1.25 x 14 hex15
49041 49.0313.9 1 0000  none  sprocket nut
49042 49.0317.0 1 0000  none  clutch nut M14-1.0
49084 49.0513.0 4 0000 $3.50 cylinder stud 7 x 118.5 (120)
49226 49.0841.9 6 0000 $0.50 stator screw M4 x 10 phil-wide

 

Left, 1978-79? Italjet SX50, Minarelli P4E all-iron cylinder (export ghisa)
Right, 1978-79? Italjet CX50, same engine

 

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‘
’75?-79? Minarelli P4E “unified” (iron sleeved alum. cylinder)
38.8 bore, 49.6cc flat top (testa piatta) piston, L-ring
figure Minarelli# qty MMI# price  description
00015 15.0029.9 1 0000  none  carb Dellorto SHB 19/19D
00068 71.0413.0 1 0000  none  piston kit flat top L-ring
00068 71.0463.7 1 0000  none  piston kit oversize
00019 19.0002.0 1 0000  none  cylinder alum. SP ∅32 3-bolt
00077 77.0110.0 1 0000  none  head (testa) NORMALE
00077 77.0111.0 1 0000  none  head (testa) SP bigger fins
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)
49037 49.0306.9 4 0000 $1.20 head nut M7 x 7

 

1978-79? Italjet CX50R, P4E iron-sleeved alum. cylinder

 

 

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’72?-74? Minarelli P4E-70 iron sleeved alum. cylinder
66.8cc (45.0 x 42)
magneto Ducati 31.02.38 3-wire internal ign. ground
for 1974 Indian ME76 (US model with brake light)

1972 Indian SE74 had a P4S-70 engine. 1973 had a P4E-70 engine.

 

P4E changes:  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.

 

 

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9. 1973-77 Minarelli P4CS, P6CS

’71-82? Minarelli P4CS Compact System (iron/alum.)
38.8 bore, 49.6cc flat top piston, L-ring
figure Minarelli# qty MMI# price  description.
00  15 15.0029.9 1 0000  none  carb SHA 14/12, F27 cover
00  15 15.0024.9 1 5650 $70.0 SHA14/12 jet 52, no cover
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486/52 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.
00015 00.0000.0 1 0000  none  carburetor Dellorto 12 to 19 mm
00019 19.0039.0 1 0000  none  cylinder alum. for 3-bolt
00015 15.0029.9 1 0000  none  carb Dellorto SHB 19/19D
00068 71.0413.0 1 0000  none  piston kit flat top L-ring
00068 71.0463.7 1 0000  none  piston kit oversize
05320 53.0306.0 1 0000 none  base gasket ∅47 48×48
05670 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
09323 03.0213.0 2 4490 $1.00 piston pin clip  Ø12
49037 49.0306.9 4 0000 $1.20 head nut M7 x 7
49084 49.0513.0 4 0000 $3.50 cylinder stud 7 x 118.5 (120)
49226 49.0841.9 6 0000 $0.50 stator screw M4 x 10 phil-wide

 

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

 

 

 

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10. 1973-82 Minarelli P4R, P6R

 

 

’74-82? Minarelli P4R, P6R iron sleeved alum. cylinder
38.8 bore, 49.6cc flat top piston, L-ring
figure Minarelli# qty MMI# price  description.
00  15 15.0029.9 1 0000  none  carb SHA 14/12, F27 cover
00  15 15.0024.9 1 5650 $70.0 SHA14/12 jet 52, no cover
00  15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486/52 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.
00015 15.0029.9 1 0000  none  carb Dellorto SHB 19/19D
00019 19.0038.0 1 0000  none  cylinder 38.8
00068 71.0413.0 1 0000  none  piston kit flat top L-ring
00068 71.0463.7 1 0000  none  piston kit oversize
00212 21.0220.0 1 0000  none  clutch cover grey
00212 21.0226.0 1 0000  none  clutch cover black
00214 21.0328.0 1 0000  none  magneto cover grey
00214 21.0335.0 1 0000  none  magneto cover black
00214 21.0347.0 1 0000  none  magneto cover black Dansi
00701 70.0131.0 1 0000  none  right case half P6R for ∅47 cyl.
00702 70.0631.0 1 0000  none  left case half P6R for ∅47 cyl.
00702 70.0650.0 1 0000  none  left case half P6R for ∅47 Dansi
05320 53.0306.0 1 0000 none  base gasket ∅47 48×48
05670 56.0601.0 1 4480 $9.50 piston pin Ø12.00 x 31.5
09323 03.0213.0 2 4490 $1.00 piston pin clip  Ø12
49037 49.0306.9 4 0000 $1.20 head nut M7 x 7
49084 49.0513.0 4 0000 $3.50 cylinder stud 7 x 118.5 (120)
49226 49.0841.9 6 0000 $0.50 stator screw M4 x 10 phil-wide

 

Left, 1976 Moto Meteora with Minarelli P6R
Right, 1981 Safari Commando, Minarelli P6-4

 

 

’74?-80? Minarelli P6R Radiale (all-aluminum cylinder)
49.6 cc (38.8 x 42)
figure Minarelli# qty MMI# price  description.
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)
49037 49.0306.9 4 0000 $1.20 head nut M7 x 7

 

 
1976 Fantic RC Casa, P6R all-aluminum cylinder

 

 

 

 

 

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