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 $0.80 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.