1. Morini S6-E  2002?-on  1-speed automatic 49.9 cc
39.0 bore, 41.8 stroke, 11.0 comp. ratio, case reed
3.2hp @5000rpm, max 7500, Dellorto SHA 14/12 carb
cast iron cylinder, mild porting, 2-shoe clutch
S6-E Service Manual from arf33.com

2. Morini S6-T  2002?-on  1-speed automatic 49.9 cc
39.0 bore, 41.8 stroke, 11.0 comp. ratio, case reed
5.8hp @8000rpm, max 10000, Dellorto SHA 14/12 carb
all-aluminum cylinder, 2-shoe clutch
S6-E, T, S, C Parts List from Herdan Corp 2007 Catalog

3. Morini S6-S  2002?-on  1-speed automatic 49.9 cc
39.0 bore, 41.8 stroke, 14.5 comp. ratio, case reed
9.4hp @11000rpm, max 13500, Dellorto PHBG19-BS carb
0.0hp @11000rpm, max 13500, Dellorto PHBN14 carb
all-aluminum cylinder, adjustable 3-shoe clutch
S6-S Parts Catalog from slideshare Edwin Alcivar luks.dk

4. Morini S6-C  2002?-on  1-speed automatic 49.9 cc
39.0 bore, 41.8 stroke, 15.5 comp. ratio, case reed
11.3hp @11500rpm, max 14500, Dellorto PHBG19-BS carb
all-alum. cylinder, liquid cooled, adjustable 3-shoe clutch
S6-C Service Manual from scribd Verseny Morini Franco USA

1. S6-E Electronic

2. S6-T Trainee

3. S6-S Sport

4. S6-C Competition

fig# 1234
fig# ETSC  Morini#   price  description
A01 1110 12-0690  none  case set
A01 0001 12-0691  none  case set
A02 1110 12-6067  $10.0 drive bearing 6003 17-35-10
A03 1111 10-5070  none  circlip internal D36
A04 1111 10-8512  $7.00 needle bearing HK1712 open
A05 2222 10-6033  none  crank seal 17 x 27 x 6
A06 2222 12-6021  $8.00 crank bearing 6203 C3 17-40-12
A07 1110 10-0187  none  crankshaft
A07 0001 10-0189  none  crankshaft
A08 1111 12-7025  $4.50 flywheel key 2.5 x 3 x 9 M83
A09 1111 16-1024  $9.00 needle bearing Ø12-15 x 15
A10 7777 29-1991  $1.40 case bolt M6x50 allen-blk
A11 1111 29-1993  --N/A- case bolt M6x60 allen-blk
A12 1110 16-4297  none  case gasket
A13 1111 10-6034  none  drive seal 17 x 27 x 5
A14 1000 11-0040  none  con rod
A14 0111 11-0041  none  con rod
A15 1111 26-0536  none  seal set 2-17x27x6, 1-17x27x5
A16 1000 26-0655  none  gasket set
A16 0111 26-0657  none  gasket set
A17 2222 26-8127  none  case dowel
B01 1000 12-4257  none  clutch cover
B01 0110 12-4276  none  clutch cover
B01 0001 12-0825  none  clutch cover
B02 1111 16-4069  none  drain plug seal washer
B03 1111 29-6001  none  drain plug
B04 1111 16-4026  $4.00 seal washer ∅14 ∅19 x 1
B05 1111 27-3007  $10.0 oil fill plug M14-1.25
B06 1111 10-5029  $1.50 circlip external D15
B08 1111 29-4115  $0.80 kick lever bolt M7x25
B09 1111 19-0029  none  kick start lever
B10 1111 16-3028  none  kick start rubber
B11 6666 29-1987  $1.00 case bolt M6x30 allen-blk
B12 1111 16-4296  none  clutch cover gasket
B13 1111 25-400508 n.a  washer 0.80
B14 1111 10-7024  none  kick shaft o-ring
B15 1111 10-0188  none  kick start shaft
B16 1111 20-1181  none  kick start spring
B17 1111 25-4010  none  spring washer
B18 1111 10-5001  $2.00 circlip external D14?
B19 1111 20-1182  none  gear spring 20-1197
B20 1111 18-1300  none  dog gear
B21 0011 16-4009  none  adj plug seal washer
B22 0011 27-3046  none  clutch adjust plug
C01 1100 12-0689  none  drive shaft-gear
C01 0011 12-0750  none  drive shaft-gear lightened
C02 2222 10-5077  $2.00 circlip external D17
C03 1111 13-1035  none  clutch nut
C04 1111 20-1195  none  clutch nut washer
C05 1100 15-0114  none  clutch shoes and center
C05 0011 15-0095  none  clutch shoes and center
C06 1111 13-6130  none  spacer ring
C07 1111 11-5097  none  drive gear bushing
C09 1111 25-405006 n.a  washer 0.60
C10 1111 23-2608  none  sprocket Z10
C10 1111 23-2611  none  sprocket Z11
C11 2222 10-5035  $1.50 circlip ext D16
C12 1111 18-0031  none  clutch bell with gear
C13 0033 29-6123  none  screw M5 x 14
C14 0033 20-1186  none  clutch shoe tension spring
C15 0033 26-8241  none  ball 2.5
C16 0033 29-6127  none  screw special
C17 00xx 20-1196  none  x=21 Belleville washer ∅6 ∅12 0.60
C18 0011 23-7142  none  clutch shoe holder plate
C19 0033 20-0092  none  clutch shoe
C21 0033 21-4013  none  clutch paw
C22 0033 27-7158  none  clutch screw coupling
C23 0011 20-1184  none  clutch spring
C24 0033 11-5102  none  bushing
D01 0000 00-0000  none  x
D02 0000 00-0000  none  x
D03 0000 00-0000  none  x
D04 0000 00-0000  none  x
D05 0000 00-0000  none  x
D06 0000 00-0000  none  x
D07 0000 00-0000  none  x
D08 0000 00-0000  none  x
D09 0000 00-0000  none  x
D10 0000 00-0000  none  x
D11 0000 00-0000  none  x
D12 0000 00-0000  none  x
D13 0000 00-0000  none  x
D14 0000 00-0000  none  x
D15 0000 00-0000  none  x
D16 0000 00-0000  none  x
D17 0000 00-0000  none  x
D18 0000 00-0000  none  x
D19 0000 00-0000  none  x
D20 0000 00-0000  none  x
D21 0000 00-0000  none  x
D22 0000 00-0000  none  x
F01  1100 12-0842  none  carburetor SHA 14/12 ∅19 sleeve
F01  0010 12-0841  none  carburetor PHBG 19-BS
F01  0001 12-0828  none  carburetor PHBG 19-BS
F02  0011 15-1015  none  clamp
F03  4400 29-1984  none  intake bolt M6 x 20
F03  0044 29-1986  none  intake bolt M6 x 25
F04  1100 25-1163  none  intake manifold ∅19 od, ∅15 id
F04  0011 11-8027  none  manifold base
F05  1100 16-4304  none  intake gasket
F05  0011 16-4298  none  intake gasket
F06  1100 29-0527  none  reed valve
F06  0011 29-0541  none  reed valve
F08  0022 29-6051  none  screw
F09  0011 20-6089  none  manifold rubber
F10  0011 23-7140  none  sleeve plate intake
G01 1000 77-2609  none  cylinder cast iron with piston
G01 0110 77-3966  none  cylinder all-alum with piston
G01 0001 12-0000  none  cylinder all-alum with piston
G02 1000 23-0180  none  piston assy standard 39.0
G02 1000 23-0181  none  piston assy oversize 39.2 39.4 39.6
G02 0110 23-0182  none  piston assy A,B,C,D 39.0
G02 0001 23-0183  none  piston assy A,B,C,D 39.0
G03 1000 27-5034  none  head
G03 0110 27-5091  none  head
G03 0001 27-5094  none  head
G04 0440 13-1005  none  head nut
G05 4444 25-4081  none  head washer
G06 0440 23-5032  none  case stud
G07 1000 16-4121  none  head gasket
G07 0110 16-4309  none  head gasket
G08 4444 12-7336  none  cylinder clamping bolt
G09 4444 25-4001  none  washer
G10 4000 23-5055  none  cylinder stud
G10 0440 23-5051  none  cylinder stud
G11 1111 16-4295  none  base gasket 0.5
G12 0222 10-7065  none  exhaust o-ring
G13 1000 26-1003  $19.0 piston ring std upper 39.0 x 2L
G13 1000 26-1044  $10.0 piston ring std lower 39.0 x 1.5 GN
G13 0222 26-1056  $19.0 piston ring standard 39.0 x 1.0 GN
G14 1111 26-8107  none  piston pin Ø12
G15 2222 10-4001  $1.00 piston clip Ø12

5. Morini M65-C Competition 2006?-on  6-speed 64.9 cc
44.5 bore, 41.75 stroke, 15.5 comp. ratio, case reed
16.7hp @12500rpm, max 15000, Dellorto PHBL 24 carb
all-alum. cylinder, liquid cooled
M65-C Parts Manual from scribd Luks Central-Lager luks.dk

This unidentified engine resembles a Morini MO engine. Left is a 1976 Intramotor-Gloria Blanco. Right is a 1976 ITOM Automatic Lusso

It has the same 12-16-17 piston as on a Morini MO aluminum cylinder, but with a 40.0 bore instead of 40.4mm.

There are 5 different bottom ends:
M1 early case reed valve, 1-speed auto, pedals, silver
M1  xxxx case reed valve, 1-speed auto, pedals, black
M1.K  xx case reed valve, 1-speed auto, kick-start
M101 xx case reed, variator transmission, pedals
M101.K   case reed, variator transmission, kick-start

There are 2 different top ends (cylinder, piston and head):
iron cylinder     all cast iron 40.4 mm, piston 12 x 19
aluminum cyl.   iron sleeve 40.4 mm, piston 12 x 16

M1 and M101

1. M1 ’79-88+

2. M101 ’81-89?

04#  5# qty
01#  2#  12  Morini# price   description 
 n/s 000 10 26-0505 $25.0 seal set M1 2-57, 2-105, 1-92
000  n/s 01 26-0514 $30.0 seal set M101 2-33, 2-109, 1-91, 1-74
001 000 10 26-5086 none  semi case, right for M1
000 001 01 26-5095 none  semi case, right for M101
002 000 10 26-5087 none  semi case, left for ∅80 2-bolt stator
000 002 01 26-5096 none  semi case, left for ∅80 2-bolt stator
003 000 10 16-4104 none  gasket, case center
000 003 01 16-4108 none  gasket, case center 
004 000 10 12-4084 none  cover, clutch w/cable stop
000 004 01 12-4088 none  cover, clutch  (variator)
005 000 10 16-4105 $12.0 gasket, clutch cover
000 005 01 12-4089 none  cover, magneto (flywheel)
006 000 10 12-4083 none  cover, magneto (flywheel)
007 000 10 12-2061 $200-$170 cyl. & piston alu-reed 40.4
000 006 01 12-2062 none  cylinder & piston iron-reed 40.4
008 007 11 16-4030 $9.00 gasket, cylinder base   Ø6 46×46
009 000 10 27-5019 $39.0 cylinder head 46 x 46
000 008 01 27-5027 none  cylinder head 46 x 46 with decomp
000 009 01 16-4111 none  head gasket Ø6 46 x 46 (use 16-4032)
010 000 10 16-4032 $9.00 head gasket Ø6 46×46
011 000 10 29-1986 $0.80 bolt M6 x 25 allen blk R cover up-rr
012 012 10 29-1988 $0.60 bolt M6 x 35 allen blk R cover lo-rr
012 012 10 29-1988 $0.60 bolt M6 x 35 allen blk case up-rr
013 000 20 29-1987 $1.00 bolt M6 x 30 allen blk case fr-lo
014 000 60 29-1990 $1.20 bolt M6 x 45 allen blk case
014 000 40 29-1990 $1.20 bolt M6 x 45 allen blk R cover
015 000 20 29-1991 $1.40 bolt M6 x 50 allen blk L cover
000 010 01 29-1987 $1.00 bolt M6 x 30 allen blk L cover lo
000 011 01 29-1990 $1.20 bolt M6 x 45 allen blk L cover up
000 011 03 29-1990 $1.20 bolt M6 x 45 allen blk R cover
012 012 09 29-1988 $0.60 bolt M6 x 35 allen blk case
016 013 44 23-5001 $4.00 cyl. stud M6 x 108 class 8.8 to hold 8 ft-lbs
016 013 44 23-50A   $3.50 cylinder stud M6 x 110 class 8.8
017 015 44 13-1001 $0.60 head nut M6 – 1.00 x 6 hex10
018 014 44 25-4001 $0.20 head washer M6
019 016 22 23-5014 $2.50 exhaust stud M5 x 30
020 018 22 13-3023 $1.50 nut, tall exhaust   M5 – 0.80 x 25 hex8
021 017 22 25-4013 $0.25 exhaust lock washer Ø5 Ø8 x 1.5
022 019 22 23-5021 $2.00 intake stud M6 x 30
026 021 11 12-0108 none  carb SHA14/12 #52 fits 18 intake
026 021 11 12-01B  $70.0 carb SHA14/12 #52 fits 18mm intake
027 022 11 15-0030 none  air filter cover 37a for M1, M101
028 022 11 25-1050 $35.0 intake, right type Ø14 x Ø18
029 023 11 25-1051 $32.0 intake, front type Ø14 x Ø18
029 023 11 25-1055 none  intake, front type   Ø9 x Ø18 (1.0 hp)
036 031 11 16-1005 $9.00 needle bearing Ø12 Ø15 x 15
037 032 22 12-6001 $8.00 ball bearing, crankshaft 6203C3
038 033 22 10-6001 $7.50 seal, crank shaft  17 x 35 x 8 (or 7)
039 034 11 13-3007 $6.00 nut, flywheel M8-1.25 × 16 hex15
040 035 11 12-7025 $4.50 woodruff key, flywheel 2.5 x 3 x 9 M83
000 036 01 25-4075 none  washer, plain Ø8  Ø24 x1.0? for M101 variator
000 037 01 13-3027 none  nut, clutch front M8-1.25 x 7 hex24 = Vespa
000 038 01 12-7144 none  drive belt AX15 for M101 see VBeltSupply.com
000 039 01 13-6047 none  spacer, variable speed for M101
000 040 01 26-8073 none  inner variator pulley half =Vespa?
000 041 01 13-6044 none  sleeve, variable speed for M101
000 042 01 12-0106 none  variator housing-drum for M101
000 043 01 12-7140 none  variator roller housing, inner =Vespa?
000 044 010 26-8072none roller cap =Vespa?
000 045 010 25-4077none roller washer  Ø??  Ø?? x ???
000 046 05 25-7035 none  roller (bare) =Vespa?
000 047 01 13-5035 none  disc, variable drive =Vespa?
041 000 10 13-1003 $2.50 nut, clutch M10-1.25 x 6 hex17
042 000 10 25-4018 $5.00 washer, plain  Ø10 Ø21 x 1.8 clutch
042 000 10 25-401S $2.00 substitute Ø10 Ø22 x 1.6
043 000 10 25-4005 $7.00 washer, shim   Ø15 Ø22 x 0.6  behind drum
044 048 11 23-0134 none  piston for al-reed 12-16-17-40.4 std.
044 048 00 23-0135 none  piston for al-reed 12-16-17-40.6 1-over
044 048 00 23-0135 none  piston for al-reed 12-16-17-40.8 2-over
044 048 11 23-0136 none  piston for ir-reed 12-19-17-40.4 std.
044 048 11 23-0136 $63.0 piston for ir-reed 12-19-17-40.4 GOL 0307
044 048 00 23-0137 none  piston for ir-reed 12-19-17-40.6 1-over
044 048 00 23-0137 none  piston for ir-reed 12-19-17-40.8 2-over
045 049 22 26-1045 $9.00 piston ring 40.4 x 1.5 GI standard
045 049 00 26-1046 $12.0 piston ring 40.6 x 1.5 GI oversize
045 049 00 26-1046 $12.0 piston ring 40.8 x 1.5 GI oversize
046 050 11 26-8001 $10.0 pin, piston Ø12 x 31.5
047 051 22 10-4001 $1.00 clip, wrist pin for Ø12 hole
048 054 11 27-3007 $10.0 oil filler/check plug M14-1.25
049 055 11 16-4026 $4.00 gasket, oil filler plug ring Ø14 x 19
050 000 10 29-1182 $1.50 oil drain plug M8 x 10 slot
000 052 01 29-4132 $0.80 oil drain plug M8 x 10 hex
051 053 11 16-4008 $1.00 drain plug gasket Ø8 x 14
000 056 01 10-1091 none  shaft, prim. with gear
000 057 01 10-1098 none  shaft, main
000 058 01 18-1143 none  main gear
000 059 01 18-4024 none  sliding clutch, engage
000 060 01 12-6003 $7.00 ball bearing, prim. shaft #6201 12x32x10
053 000 10 11-5010 none  bushing plain, clutch drum Ø15 Ø18 x 18.5
054 000 10 25-4005 $7.00 washer, shim Ø15 Ø22 x 0.6  clutch drum
055 000 10 20-0012 $55.0 clutch assembly
056 000 10 20-0003 none  housing, clutch
057 000 10 12-7020 $33.0 clutch shoe (ea) tire tread surface
058 000 10 12-7021 $9.50 clutch shoe master link #520
059 000 10 20-1033 $5.00 spring, extension, clutch
060 000 10 25-7002 $3.00 spring anchor pin Ø3 x 14 substitute
063 000 10 20-1019 $15.0 spring, compression Ø27 Ø19 x 21 starter
064 000 10 12-7022 $35.0 clutch starting plate 20.8 deep
065 000 10 10-4006 $8.00 clip, clutch plate for Ø84 hole
066 000 10 19-0004 $15.0 lever, start rear-pull Ø12
066 000 10 21-0004 none  start lever/shaft regular (front-pull)
067 000 10 10-7002 $2.00 o-ring, starting lever Ø2 x 9 id (13 od)
068 000 10 20-1018 $8.00 spring, torsion, starter lever
068 000 10 20-1022 none  spring, torsion, starter lever (use 20-1018)
069 000 10 26-8014 none  pin, clutch lever for MO, MO1, M1
073 000 10 25-4005 $7.00 washer, shim   Ø15 Ø22 x 0.6  prim. shaft
074 000 10 25-4040 $7.00 washer, shim   Ø13 Ø18 x 0.2
075 093 11 11-5003 none  bushing with lip, drive shaft Ø13 Ø?? x ??
076 061 22 12-6002 $6.00 ball bearing, drive shaft #6202 15 x 35 x 11
077 000 10 13-1003 $2.50 nut, primary shaft
078 000 10 25-4018 none  washer, plain    Ø3  Ø6? x1.0? for??
079 000 10 10-6008
080 000 10 23-2534 none  sprocket 13T flat-sided thick
000 062 01 12-7002
000 063 01 13-3026
000 064 01 25-4076
000 065 01 26-8071
000 066 01 26-8070
000 067 01 20-1075
000 068 01 10-5028
000 069 01 13-5037
000 070 01 20-1076
000 071 01 20-6030
000 072 01 20-1083
000 073 01 23-7053
000 074 01 10-6021 $5.50 seal, variator  13 x 19 x 3
000 075 01 16-1019
000 076 01 13-5034
000 077 01 25-4073
000 078 01 25-4074
000 079 01 10-5023
000 080 01 10-6020
000 081 01 10-5024
000 082 01 20-1077
000 083 01 20-6029
000 084 01 20-1082
000 085 01 12-7141
000 086 01 25-4023
000 087 01 13-1006
081 088 11 13-1002 $10.0 nut, sprocket M12-1.25 x 6 hex17
083 000 10 10-1020 none  shaft, pedal
000 089 01 25-4002
000 090 01 23-2550 $15.0 sprocket 10T flat-sided thick
000 091 01 10-6008 $6.00 seal, drive shaft  15 x 24 x 7 (or 5)
000 092 01 2
000 094 01 2
000 095 01 2
000 096 01 2
000 097 01 2
000 098 01 2
000 099 01 2
000 100 01 2
000 101 01 2
000 102 01 2
000 103 01 2
000 104 01 10-1093 none  shaft, pedal
084 000 10 23-2543 none  pedal sprocket 17T
000 105 01 23-2547 none  pedal sprocket ??T
085 106 11 20-6001 none  coupling claw (collar)
086 107 11 20-1015 none  spring, coupling claw, pedal
087 000 10 12-7016 $12.0 pedal chain #35 x 24 link Regina ASA35
000 108 01 12-7142 none  pedal chain
088 109 22 10-6004 $7.50 seal, pedal shaft  16 x 24 x 5
089 110 11 25-4007 none  washer, plain  Ø16 Ø26?x1.5?
090 111 11 10-5005 $1.50 snap ring, outer for Ø16 shaft
091  n/s 11 23-7002Dnone pedal arm D right 4¾x1¼” 434R use 502R
091  n/s 00 23-700R $18.0 pedal arm D right   5 x1½” 502R
091  n/s 11 23-7002Snone pedal arm S left    4¾x1¼” 434L use 502L
091  n/s 00 23-700L $20.0 pedal arm S left      5 x1½” 502L
092  n/s 22 12-7017 $2.00 pedal wedge pin Ø9.0 H-134
093 000 10 29-0045 $330. magneto Dansi 101765 ign gnd ext
093 113 11 29-0045Bnone magneto Bosch 0212-010-003 ext
093 113 11 29-0053 none  magneto CEV 6420 ign gnd ext
094 114 22 29-6022 $0.70 bolt M4 x 12 phil wide for stator
095 115 22 25-4070 $0.50 washer, star Ø4 Ø8 for stator
096 116 11 16-3022 none  grommet, magneto ext spark 3-thin holes
097 117 11 11-8007 none  spark coil Bosch H79A
097 117 10 11-H79B none  spark coil Dansi H79B
098 000 10 12-7026 $3.50 spark plug NGK BR5ES
000 118 01 12-7075 $3.50 spark plug NGK B6ES = W7D
099 119 11 23-7001 $6.00 spark plug cap generic
100 120 11 16-3004 none  rubber boot, spark plug cap

M1.K

6. M1.K ’79-90+

# qty Morini#  price
 n/s 1 26-0505 $25.0 seal set M1.K 2-57, 2-105, 1-92
01  1  26.5086 none  semi case, right for M1
02  1  26.5087 none  semi case, left for M1
03  1  16.4104 none  gasket, case center M1
04  1  12.4085 none  clutch cover for kickstart
05  1  16.4105 $12.0 gasket, clutch cover
06  1  12.4083 none  cover, magneto (flywheel)
07  1  12.2061 $200-$170 cyl. & piston alu-reed 40.4
08  1  16.4030 $9.00 gasket, cylinder base   Ø6 46×46
09  1  27.5019 $39.0 cylinder head 46 x 46
10  1  16.4032 $9.00 head gasket Ø6 46×46
11  2  29.1987 $1.00 bolt M6 x 30 allen blk case
12  1  29.1989 $1.20 bolt M6 x 40 allen blk case
13  6  29.1990 $1.20 bolt M6 x 45 allen blk case
13  4  29.1990 $1.20 bolt M6 x 45 allen blk R cover
14  2  29.1991 $1.40 bolt M6 x 50 allen blk L cover
15  2  29.1992 $0.80 bolt M6 x 55 allen blk R cover
16  4  23.5001 $4.00 cyl. stud M6 x 108 class 8.8 to hold 8 ft-lbs
16  4  23-50A   $3.50 cylinder stud M6 x 110 class 8.8
17  4  13.1001 $0.60 head nut M6 – 1.00 x 6 hex10
18  4  25.4001 $0.20 head washer M6
19  1  23.5014
20  1  13.3023
21  1  25.4013
22  1  23.5009
23  1  13.1001
24  1  25.4001
25  1  16.4093
26  1  12.0108 none  carb SHA14/12 #52 fits 18 intake
26  1  12-01B   $70.0 carb SHA14/12 #52 fits 18mm intake
27  1  15-0030 $11.0 air cover #37a no inlet tubes
27  2  15-0030 $8.00 air cover inlet tube Ø9 Ø12 x 50
28  1  25-1050 $35.0 intake, right type Ø14 x Ø18
29  1  25-1051 $32.0 intake, front type Ø14 x Ø18
30  1  16.4103
31  1  29.0501
32  1  16.4106
33  1  16.7005
34  1  10.0015
35  1  11.0015
36  1  16.1005 $9.00 needle bearing Ø12 Ø15 x 15
37  2  12.6001 $8.00 ball bearing, crankshaft 6203C3
38  2  10.6001 $7.50 seal, crank shaft  17 x 35 x 8 (or 7)
39  1  13.3007 $6.00 nut, flywheel M8-1.25 × 16 hex15
40  1  12.7025 $4.50 woodruff key, flywheel 2.5 x 3 x 9 M83
41  1  13.1003 $2.50 nut, clutch M10-1.25 x 6 hex17
42  1  25.4018 $5.00 washer, plain  Ø10 Ø21 x 1.8 clutch
43  1  25.4005 $7.00 washer, shim Ø15 Ø22 x 0.6  clutch drum
44  1  23.0125 $70.0 piston for alu. cyl 12-16-17-40.4 std.
44  0  23.0126 $72.0 piston for alu. cyl 12-16-17-40.6 1-over
45  1  26.1045 $9.00 piston ring 40.4 x 1.5 GI std.
45  0  26.1046 $12.0 piston ring 40.6 x 1.5 GI 1-over
46  1  26.8001 $10.0 pin, piston Ø12 x 31.5
47  2  10.4001 $1.00 clip, wrist pin for Ø12 hole
48  1  27.3007 $10.0 oil check plug
49  1  16.4026 $4.00 plug gasket
50  1  29.1182 drain plug
51  1  16.4008 drain plug gasket
52  1  27.0040 drum and gear set
53  1  11.5010 bushing, clutch
54  2  25.4005 washer, clutch
55  1  20.0012 clutch assy
56  1  20.0003 clutch housing
57  2  12.7020 $33.0 clutch shoe
58  2  12.7021 $9.50
59  4  20.1033 $5.00 clutch spring
60  1  25.7002 $3.00 spring anchor pin Ø3 x 14 substitute
61  1  13.5031
62  1  10.5009
63  1  10.0038
64  1  18.4022
65  1  18.1099
66  1  20.1070
67  1  25.4007
68  1  10.7003
69  1  25.4054
70  1  10.5005 $1.50 snap ring, outer for Ø16 shaft
71  1  10.1087
72  1  10.1088
73  1  25.4005
74  1  25.4040 $7.00 washer, shim Ø13 Ø18 x 0.2
75  1  11.5003
76  1  12.6002
77  1  13.1003
78  1  25.4018 $5.00 washer, plain  Ø10 Ø21 x 1.8 clutch
78  1025-401S $2.00 substitute Ø10 Ø22 x 1.6
79  1  10.6008
81  1  13.1002 $10.0 nut, sprocket M12-1.25 x 6 hex17
82  1  25.4002
83  1  23.2534 none  sprocket 13T flat-sided thick
84  1  19.1031
85  1  20.1059
86  1  25.4023
87  1  23.1039
88  1  16.3015
89  1  10.5020
93  1  29.0034 none  magneto Dansi 101286 ign gnd int
94  2  29.6022 $0.70 bolt M4 x 12 phil wide for stator
95  1  25.4070 $0.50 washer, star Ø4 Ø8 for stator
96  1  16.3022 none  grommet for ext. spark, 3-thin holes
97  1  11.8007 none  spark coil Dansi
98  1  12.7076 $3.50 spark plug NGK BP6ES
99  1  23.7001 $6.00 spark plug cap generic
1001  16.3004 none  rubber boot, spark plug cap
1011  23.7029 none  rubber disc-plug for pedal shaft hole

M1: In 1979 Morini came out with the M1 engine, a one-speed with a case-type reed valve. The reed valve induction produced about 20-30% more torque. The result was acceleration about the same as a MO-2 two-speed, but at a much lower cost and complexity. So by about 1980, both the MO-1 and MO-2 were discontinued in favor of the M1.

M101: In 1981 the two-speed M101 came out, a variator-transmission belt-drive engine with a M1 top-end (cylinder, piston and head). The variable-ratio-pulley transmission resulted in increased acceleration over the fixed-ratio M1. The price increased and so did the weight and case length.

Contents:
A. S5, S5K, S5K2, S5R
B. S5N, S5E, S5T, S5GS

The Franco Morini engines in this  S5 engine family all have 50cc two-stroke vertical cylinders and one-speed automatic transmissions. They all say FM-S5 on the engine case. From cybermotorcycle.com: This engine was used by many motorcycle manufacturers from the 1960’s up to 2001. Manufacturers that have used this engine are as follows: Italjet/Indian, Malaguti, LEM, KTM, Husqvarna, DBM, Young Rider plus many others. 

A. S5, S5K, S5K2, S5R

1. Morini S5  1966-70? 1-speed automatic 47.7 cc
38.0 bore, 42.0 stroke, 6.5 comp. ratio, pedal start
2.2hp 50kph, 14/12 carb or 1.4hp 40kph, 14/9 carb
piston pin bushing, S5 top end, 40 x 40 cyl studs
from mondo50cc.forumfree.it Catalogo Generale Ricambi

2. Morini S5K  1968-72? 1-speed automatic 47.7 cc
38.0 bore, 42.0 stroke, 6.5 comp. ratio, backward kick
2.2hp 50kph, 14/12 carb or 1.4hp 40kph, 14/9 carb
piston pin bushing, S5 top end, 40 x 40 cyl studs
from indiandirtbikeparts.com ’72 Indian JC5A, M5A Catalog 

3. Morini S5K2  1972-86? 1-speed automatic 47.7 cc
38.0 bore, 42.0 stroke, 6.5 comp. ratio, forward kick
2.2hp 50kph, 14/12 carb or 1.4hp 40kph, 14/9 carb
to-’77 piston bushing, S5 top end, 40 x 40 cyl studs
from indiandirtbikeparts.com 1974? Italjet M5A Catalog
’78-on piston bearing, from 1984 Marina Mobili Inc Catalog 

4. Morini S5R  1977-79? 1-speed automatic 49.6 cc
39.0 bore, 41.5 stroke, 9.0 comp ratio, forward kick
5.0 hp, Dellorto SHB 19/19 carb
piston pin bearing, all-alum. cylinder, 50 x 50 cyl studs
from mondo50cc.forumfree.it Catalogo Generale Ricambi

.         

.     .   

.         

1. S5 1966-70?

2. S5K 1968-72?

3. S5K2 1972-86?

4. S5R 1977-79?

Here are four parts lists combined into one. Each list has a quantity column, showing how many of each part. The quantity can have different colors. Black quantity means all. Light grey quantity means some. Red means restricted. Each list has an illustration with item numbers for each part. 00 item number means not shown or not numbered. Violet part number means non-Morini.

1# 2# 3# 4#  qty
1# 2# 3# 4# 1234  Morini# price   description 
00 00 00 00 1100 03-0011 none  gasket set
00 00 00 00 0011 03-0021 none  gasket set
00 00 00 00 1110 00-0009 none  seal set 2-17.35.8, 15.24.7 use 26-0506
00 00 00 00 0001 26-0506 $18.0 seal set 2-17.35.8, 15.24.7
01 51 01 00 1110 26-5012 none  right case 40 x 40 cyl. studs
00 00 00 01 0001 26-5082 none  right case 50 x 50 cyl. studs
02 00 00 00 1000 26-5013 none  left case 40 x 40 for ∅94 stator
00 52 02 00 0110 26-5053 none  left case 40 x 40 for ∅80 stator
00 00 00 02 0001 26-5083 none  left case 50 x 50 for ∅80 stator
03 61 03 03 1111 16-4021 none  case gasket
04 57 04 04 2222 16-7004 none  case dowel Ø6 Ø8 x ??
05 54 00 00 2200 29-1169 $1.00 case bolt M6x40 slot
00 00 05 05 0022 29-1989 $1.20 case bolt M6x40 allen-blk
00 53 00 00 0200 29-1170 $1.00 case bolt M6x45 slot
00 00 06 06 0011 29-1990 $1.20 case bolt M6x45 allen-blk
06 55 00 00 1100 29-1171 $1.00 case bolt M6x50 slot
00 00 07 07 0011 29-1991 $1.40 case bolt M6x50 allen-blk
07 56 00 00 2200 29-1172 $0.80 case bolt M6x55 slot
00 00 08 08 0022 29-1992 $0.80 case bolt M6x55 allen-blk
08 00 00 00 2000 29-1173 $0.80 case bolt M6x60 slot
00 00 00 00 0011 29-1993 --N/A- case bolt M6x60 allen-blk
00 00 00 00 7777 total case bolts
09 00 00 00 1000 12-4015 none  clutch cover
00 35 00 00 0100 12-4033 none  clutch cover
00 00 09 09 0011 12-4054 none  clutch cover
10 39 00 00 1100 16-4025 none  clutch cover gasket
00 00 10 10 0011 16-4085 none  clutch cover gasket
11 00 00 00 3000 29-1160 --N/A- cover bolt M6x15 slot
12 36 00 00 4200 29-1171 $1.00 cover bolt M6x50 slot
00 37 00 00 0200 29-1173 $0.80 cover bolt M6x60 slot
00 38 00 00 0200 29-1169 $1.00 cover bolt M6x40 slot
00 00 06 06 0022 29-1990 $1.20 cover bolt M6x45 allen-blk
00 00 07 07 0044 29-1991 $1.40 cover bolt M6x50 allen-blk
00 00 00 00 7666 total clutch cover bolts
13 00 11 11 1011 12-7004 none  magneto cover with ears 111-114 id
00 18 00 00 0100 12-7019 none  magneto cover with holes
14 00 12 12 2022 20-1061 none  mag cover clip
00 19 00 00 0200 29-6016 $1.50 mag cover screw M4x5 slot
16 00 13 13 1011 16-3017 none  wire guide
16 31 13 13 0100 16-3006 none  wire guide-grommet
17 24 14 14 1111 23-7006 none  sprocket plate
18 12 15 00 1110 12-2007 none  cylinder A 40 x 40 38.0 all iron (2.0hp)
00 12 15 00 0110 12-2018 none  cylinder B 40 x 40 38.0 all iron (1.4hp)
00 00 00 15 1110 12-2052 none  cylinder 50 x 50 39.0 alum. big fins

 
19 00 16 00 1110 16-4001 none  base gasket ∅6 40 x 40
00 00 00 16 0001 16-4080 none  base gasket ∅6 50 x 50
20 00 17 00 1110 27-5006 none  head 40 x 40 rounded
00 00 00 17 0001 27-5018 none  head 50 x 50 big radial
21 00 18 00 1110 16-4018 none  head gasket ∅6 40 x 40
00 00 00 18 0001 16-4022 none  head gasket ∅6 50 x 50
22 00 19 00 4440 23-5002 none  stud M6 x 108 class 10.9 (11 ft-lbs)
00 00 00 19 0004 23-5001 $4.00 stud M6 x 108 class 8.8 (8 ft-lbs)
23 13 20 20 4444 13-1001 $0.60 head nut M6-1.0 x 6 hex10
24 14 21 21 4444 25-4001 $0.20 head washer Ø6 Ø13 x 1.5
25 03 22 00 1110 25-1001 none  intake pipe A 16od 12id
00 03 22 00 0110 25-1015 none  intake pipe B 16od 10?id
00 00 00 22 0001 25-1027 none  intake pipe 24od?
26 06 23 00 1210 16-4005 none  intake gasket
00 00 00 23 0001 16-4011 none  intake gasket
00 00 00 24 0002 13-1001 $0.30 intake nut M6
00 07 00 00 0100 13-6003 none  heat spacer
00 00 25 00 0020 29-4086 $0.50 intake bolt M6 x 16 hex
28 04 00 00 2200 29-4088 $0.50 intake bolt M6 x 20 hex
29 05 26 25 2224 25-4017 $0.25 lock washer Ø6
30 34 00 00 1100 27-3004 none  oil fill plug
00 00 27 26 0011 27-3007 $10.0 oil fill plug M14-1.25
31 33 28 27 1111 16-4026 $4.00 seal washer ∅14 ∅19 x 1
34 29 30 28 1111 29-4132 $0.80 drain plug M8 x 10 hex
35 30 29 29 1111 16-4008 $1.00 seal washer Ø8 x 14
36 00 00 00 1000 10-0007 none  crankshaft bushing type
00 62 31 30 0111 10-0033 none  crankshaft bushing type
00 00 31 30 0011 10-0052 none  crankshaft bearing type
41 00 32 31 1111 11-0004 none  rod bushing type
00 00 32 31 0011 11-0015 none  rod bearing type
42 00 33 00 1110 11-5001 $8.00 bushing Ø11.75-15.05 x 15 see note 1
00 00 33 32 0011 16-1005 $9.00 needle bearing Ø12-15 x 15
00 00 00 32 0001 11-5028 none  bushing S5R
43 17 34 33 1111 26-8001 $10.0 piston pin Ø12 x 31.4
44 16 34 34 2222 10-4001 $1.00 piston clip Ø12
45 00 35 00 1010 23-0101 none  piston assy 12-22-17-38.0
45 00 35 00 1010 71-0405 $65.0 piston assy 12-22-16-38.0 see note 2
00 15 00 00 0100 23-3501 none  piston assy 38.0
45 00 35 00 1010 23-0102 none  piston 1-os 38.2
00 15 00 00 0100 23-3502 none  piston 1-os 38.2
00 00 00 35 0001 23-0133 $65.0 piston assy 39.0
00 00 00 35 0001 23-0134 none  piston 1-os 39.2
46 00 36 00 2220 26-1001 $$9.0 piston ring 38.0 x 2.0 GN
00 00 00 36 0001 26-1003 $$9.0 upper ring 39.0 x 2L
00 00 00 37 0001 26-1044 $$9.0 lower  ring 39.0 x 1.5 GN
47 63 37 38 1111 12-6001 $8.00 crank bearing 6203-C3
48 59 38 39 2222 10-6001 $7.50 crank seal  17 x 35 x 8 (or 7)
49 58 39 40 1111 12-7025 $4.50 flywheel key 2.5 x 3 x 9 M83
50 22 40 41 1111 13-3007 $6.00 flywheel nut M8-1.25 × 16 hex15
52 00 00 00 1000 15-0020 none  transmission assy
53 00 00 00 1000 18-0005 none  gear and drum set
00 00 00 00 0100 18-0003 none  gear and drum set
00 00 41 42 0011 27-0011 none  gear and drum set
54 00 00 00 1000 20-0004 none  clutch housing assy
00 00 00 00 1011 20-0019 none  clutch housing assy
00 00 42 43 0011 20-6002 none  clutch hub bare
55 00 43 44 2222 12-7020 $33.0 clutch shoe (each)
56 00 44 00 2220 20-1017 $5.00 clutch shoe spring
00 00 00 45 0002 20-1071 none  clutch shoe spring
57 00 45 46 2222 12-7021 $9.50 clutch shoe link #520 chain master
58 00 46 47 4444 25-7002 $3.00 spring anchor pin Ø3 x 14 substitute
59 00 00 48 1101 11-5009 none  clutch bushing Ø15 Ø18 x 18.5
00 00 47 00 0010 11-5010 none  clutch bushing Ø15 Ø18 x 18.5
00 42 00 00 0100 00-0000 none  S5K kick start assembly
00 00 00 00 0100 4112/1   none  kick lever
00 00 00 00 0100 20-1013 none  kick return spring
00 00 00 00 0100 23-7004 none  support plate
00 00 00 00 0100 25-4039 none  washer ∅11
00 00 00 00 0100 25-4007 none  washer ∅16 ∅26? x 1.5?
00 00 00 00 0100 10-0018 none  start shaft assembly
00 00 00 00 0100 10-1011 none  start shaft
00 00 00 00 0100 16-0004 none  central pin assy
00 00 00 00 0100 18-1018 none  gear, kick start
00 00 00 00 0100 23-1025 none  gear, central pin
00 00 48 49 0011 10-1052 none  start shaft Ø16 Ø11.3 22 spline
00 00 49 50 0011 18-4019 none  coupling claw
00 00 50 51 0011 20-1072 none  coupling spring
00 00 51 52 0011 19-0006 none  kick lever
00 00 52 53 0011 23-1039 none  kick stud
00 00 53 54 0011 16-3015 none  grommet
00 00 54 55 0011 25-4023 none  stop peg washer
00 00 55 56 0011 16-3018 none  kick lever cover
00 00 56 57 0011 29-4113 $0.60 kick lever bolt M8 x 25 hex
00 00 56 00 0010 29-4115 $0.60 kick lever bolt M8 x 25 hex
00 00 57 58 0011 20-1053 none  kick return spring
00 00 58 59 0011 18-1081 none  start shaft gear
00 00 59 60 0011 18-1065 none  crank gear-nut .
00 00 60 61 0011 10-7003 none  circlip
00 00 61 62 0011 25-4055 none  washer
60 00 00 00 1000 12-7022 $35.0starting plate 20.8 deep
61 00 00 00 1000 10-4006 $8.00 starter plate clip
62 00 00 00 2000 13-1003 $2.50 clutch nut M10-1.25 x 6 hex17
63 50 69 70 2211 25-4018 $5.00 washer  Ø10 Ø21 x 1.8 
64 00 00 00 1000 20-1019 $15.0 spring, compression Ø27 Ø19 x 21 starter
65 00 00 00 1000 19-0009 none  start lever-shaft
66 00 00 00 1000 26-8014 none  start lever pin
67 00 00 00 1000 20-1018 $5.00 torsion spring
68 00 00 00 1000 10-7002 $2.00 o-ring, starting lever Ø2 x 9 id (13 od)
69 00 00 00 3000 25-4005 $7.00 shim washer Ø15 Ø22 x 0.6
70 48 00 00 1100 12-7011 none  drive gear
71 49 00 00 1100 13-1003 $2.50 gear nut M10-1.25 x 6 hex17
00 00 70 71 0011 13-1002 $10.0 gear nut M12-1.25 x 6 hex17
00 00 71 72 0011 25-4007 none  washer ∅16 ∅26? x 1.5?
00 00 72 73 0011 10-5005 $2.00 snap ring, outer for Ø16 shaft
72 64 00 00 1100 10-1024 none  drive shaft M12 x M10
00 00 62 63 0011 10-1051 none  drive shaft M12 x M12
73 65 63 64 2222 12-6002 $6.00 drive bearing #6202 15 x 35 x 11
74 60 64 65 1111 10-6008 $6.00 drive seal  15 x 24 x 7 (or 5)
75 26 65 66 1111 23-2508 $15.0sprocket 11T flat-sided thin
76 28 66 67 1111 25-4002 none  sprocket washer Ø12 Ø20?x1.0?
77 27 67 68 1111 13-1002 $10.0 sprocket nut M12-1.25 x 6 hex17
00 00 68 69 0033 25-4005 $7.00 washer, shim   Ø15 Ø22 x 0.6  
78 00 00 00 1000 12-0008 none  carb SHA14/12 #50 ∅16 use 20-0012
00 02 80 00 0110 12-0012 none  carb SHA14/12 #50 ∅16 (2.2hp)
00 02 80 00 0110 12-0061 none  carb SHA14/9,  #43 ∅16 (1.4hp)
78 02 80 00 1110 12-00A   $73.0 carb SHA14/12 #50 ∅16
00 00 00 83 0001 12-0068 none  carb SHB19/19D ? ∅24?
79 21 00 00 1100 29-0006 none  magneto ∅94 Dansi MDL111
00 00 00 00 1100 MDL111/6 00  none  points for MDL111 01.3239
00 00 00 00 1100 MDL111/10 0  $15.0 condenser M17D 07.0074 
00 00 73 74 0011 29-0026 none  mag. ∅80 Bosch 0212 005 015 to-’77
00 00 00 00 0011 2207 013 004 $11.0 points M31A no wire
00 00 00 00 0011 1237 330 035 $15.0 condenser M32A solder type
00 00 73 74 0011 29-0026 none  mag. ∅80 Bosch 0212 005 021 ’78-on
00 00 00 00 0011 2207 013 005 $15.0 points M31 with wire
00 00 00 00 0011 2217 330 050 $15.0 condenser M32 screw post type
80 00 00 00 2000 29-6021 $1.00 stator bolt M4 x 12 phil pan use 29-6022
00 23 00 00 0200 29-6015 $0.70 stator bolt M4 x 12 slot?
00 00 74 75 0022 29-6022 $0.70 stator bolt M4 x 12 phil wide 
81 08 75 00 1110 13-7074 $3.50 spark plug NGK BR6HS
00 00 00 76 0001 13-7075 $3.50 spark plug NGK B6ES
00 00 00 77 0002 25-4070 $0.20stator washer M4
00 00 81 78 0011 10-5019 none  start shaft circlip Ø19
00 00 00 79 0001 10-5020 none  stop peg circlip Ø?
82 00 76 00 1111 23-7020 $6.00 spark plug cap
83 00 77 00 1110 16-2001 none  exhaust header nut
84 00 78 00 1110 16-4010 none  exhaust gasket ring type
00 00 00 80 0001 16-4024 none  exhaust gasket flange type

Note 1: The piston pin bushing requires reaming to ∅12.0 and drilling after it is pressed in, with an adjustable reamer and a precision holder tool.

Note 2: The substitute S5, S5K, S5K2 piston is an early Minarelli 71.405.0 which equals MMI 4500. It is the same except for thicker rings (2.5 instead of 2.0) and a shorter skirt (16 instead of 17 mm). An old design used by Morini and Minarelli since 1951. Dimensions are 12 mm pin, 22 upper (above the pin), 16 lower (below the pin) and 38.0 diameter, abbreviated as 12-22-16-38.0.

But why are these early Italian 50cc pistons the same dimensions and design as German pistons made by Sachs? In the early 1950’s Vittorio Minarelli visited Fichtel and Sachs in Austria to learn about moped engines. When Minarelli returned he began building engines, along with partner Franco Morini, at FBM in the 1950’s. The Italian engineers used many of German engineer Ernst Sachs production methods and knowledge, like casting and metallurgy, and design principles, like bore and stroke, port timing, sizes and thicknesses, geometry, etc.

Left, 1966-86? Morini S5, S5K, S5K2
Mid ’69-79 Minarelli V1 1hp, ’51-55 FBM P48, P2, P3, ’56-68? Morini F1, P3
Right, 1972-78 Sachs 504, 505, others. All can interchange.

B. S5E, S5N, S5T, S5GS

1. Morini S5N  1978-88? 1-speed automatic 49.6cc
39.0 bore, 41.5 stroke, piston port induction
Dellorto SHA 14/12 carburetor
new: iron-sleeved alum. cylinder, electronic ignition
from mondo50cc.forumfree.it Catalogo Generale Ricambi

2. Morini S5E  1989-92? 1-speed automatic 49.8cc
39.0 bore, 41.7 stroke, piston port induction
Dellorto SHA 14/9 carburetor
new: all-iron cylinder, electronic ign, alum kick lever
from mondo50cc.forumfree.it Catalogo Generale Ricambi

3. Morini S5T  1992-97?  1-speed automatic 49.8cc
39.0 bore, 41.7 stroke, two-petal reed valve
Dellorto SHA 14/12 carburetor
new iron sleeved aluminum cylinder
from mondo50cc.forumfree.it Catalogo Generale Ricambi

4. Morini S5GS  1997-01? 1-speed automatic 49.8cc
39.0 bore, 41.7 stroke, four-petal reed valve
Dellorto SHA 14/12 or Mikuni VM18 carburetor
new all-aluminum cylinder with larger fins
Used on Husqvarna, KTM (pre 2001), LEM, Rivara and DBM.
The Husqvarna version had an o-ring head gasket
and a thicker base gasket in later years.

.         

.     

1. S5N 1978-88?

2. S5E 1989-92?

3. S5T 1992-97?

4. S5GS 1997-01?

Here are four parts lists combined into one. Each list has a quantity column, showing how many of each part. The quantity can have different colors. Black quantity means all. Light grey quantity means some. Magenta means restricted. Each list has an illustration with item numbers for each part. 00 means not shown or not numbered.

1# 3# 4#  qty
2# 3# 4# 1234  Morini# price   description
01 01 01 1111 12-0505 none  engine case set ’97
03 03 03 1111 16-4134 none  engine case gasket
04 04 04 2222 16-7004 none  dowel pin ∅10 ∅8 x 14
05 05 05 3333 29-1989 $1.20 case  bolt M6x40 allen-blk
06 06 06 3333 29-1990 $1.20 case  bolt M6x45 allen-blk
07 07 07 5555 29-1991 $1.40 case  bolt M6x50 allen-blk
08 08 08 2222 29-1992 $0.80 case  bolt M6x55 allen-blk
09 09 09 1111 12-4112 none  clutch cover black
10 10 10 1111 16-4135 none  clutch cover gasket
11 11 11 1111 12-4119 none  magneto cover black
12 12 12 2222 20-1061 none  mag cover clip
13 00 00 1000 14-1755 none  CDI-coil S5N Ducati 432.39.9510
13 00 00 0100 14-0001 none  coil
00 13 13 0011 16-3045 none  coil?
14 00 00 1000 29-0118 none  magneto Ducati 431.06.3500
14 14 14 0111 29-0106 none  flywheel-rotor
00 00 15 0001 00-0000 none  cylinder
00 00 16 0001 00-0000 none  base gasket
00 00 17 0001 00-0000 none  cylinder head
00 00 18 0001 00-0000 none  head gasket 1
00 00 19 0004 00-0000 none  cylinder stud M6x112-25/15
00 00 20 0004 00-0000 none  head nut M6 x 36 hex12
00 00 21 0004 00-0000 none  washer ∅6.4
00 00 22 0001 00-0000 none  intake flange vm18 pro junior
00 00 22 0001 00-0000 none  intake f.vm14/16 projun.usa6
00 00 24 0001 00-0000 none  rubber gasket 25 x1 * rubber for flywheel
00 00 26 0001 00-0000 none  securing guide
00 00 27 0001 00-0000 $10.0 oil level contr. plug pvcm14
00 00 28 0001 00-0000 $4.00 seal washer 14 x 20 x 1
00 00 29 0001 00-0000 none  hh screw din0933-m 8×10
00 00 30 0001 00-0000 $1.00 seal ring 8x14x1 ai
00 00 31 0001 00-0000 none  crankshaft stroke 41,7mm ’98
00 00 32 0001 00-0000 none  con. rod repair s5gs ’98
00 00 33 0001 00-0000 none  needle cage 12x15x15
00 00 34 0002 00-0000 none  circlip 35 x1
35 00 00 1100 23-0149 none  piston assy 39.0
00 35 00 0010 23-0141 none  piston assy 39.0 for T4
00 00 35 0001 00-0000 none  piston cpl. a d=39mm
00 00 35 0001 00-0000 none  piston cpl. b d=39mm
00 00 35 0001 00-0000 none  piston cpl. c d=39mm
00 00 35 0001 00-0000 none  piston cpl. d d=39mm
36 36 00 1100 26-1003 $19.0 piston ring upper 39.0 x 2L
00 00 36 0011 00-0000 none  piston ring set
00 00 37 0002 00-0000 none  ball bearing 6203 tn9.c3
00 00 38 0002 00-0000 none  radial seal ring 17x35x8
00 00 39 0001 00-0000 none  woodruff key din6888-2,5×3
00 00 40 0001 13-3007 $6.00 flywheel nut M8x14 hex15
00 00 41 0001 00-0000 none  clutch hub 52-z w.prim.15-z
00 00 42 0001 00-0000 none  inner clutch hub
00 00 43 0002 12-7020 $33.0 clutch shoe
00 00 44 0002 00-0000 none  clutch spring reinforced
00 00 45 0002 12-7021 $9.50 none  joint for blocks
00 00 46 0004 25-7002 $3.00 roller 3×13,8
00 00 47 0001 00-0000 none  bushing 15x18x18
00 00 48 0001 00-0000 none  starting shaft
00 00 49 0001 00-0000 none  kickst. ratchet
00 00 50 0001 00-0000 none  spring
00 00 51 0001 00-0000 none  clutch hub cpl. reinforced
00 00 52 0001 00-0000 none  stop screw m8
00 00 53 0001 00-0000 none  rubber 10x26x18
00 00 54 0001 00-0000 none  ground plate ignition coil
00 00 55 0001 00-0000 none  kick start rubber
00 00 56 0001 00-0000 none  hh screw din0933-m 7×25
00 00 57 0001 00-0000 none  kick starter spring
00 00 58 0001 00-0000 none  kick starter sprockets
00 00 59 0001 00-0000 none  plastic cap kick starter
00 00 60 0001 00-0000 none  o-ring 12,00×2,00 nbr 70
00 00 61 0001 00-0000 none  washer 8,4x25x0,4
00 00 62 0001 00-0000 none  counter shaft
00 00 63 0002 00-0000 none  ball bearing 6202-2rsh/c3
00 00 64 0001 00-0000 none  radial seal ring 15x24x5
00 00 65 0001 00-0000 none  sprocket 10-t
00 00 66 0001 00-0000 none  washer 12,2x20x1,8
00 00 67 0001 00-0000 none  rubber cap
00 00 68 0005 00-0000 none  washer 15x22x0,4
00 00 69 0001 00-0000 none  cylinder + piston
00 00 70 0001 00-0000 none  circlip 14×1,2
00 00 71 0002 00-0000 none  shim 16x25x0,25
00 00 72 0001 00-0000 none  circlip din0471-16×1
00 00 73 0002 00-0000 none  washer din0125-a 5,3
00 00 74 0003 00-0000 none  screw m4x10
00 00 75 0001 00-0000 none  spark plug bosch w 4 ac
00 00 76 0001 00-0000 none  spark plug connector
00 00 77 0001 00-0000 none  tooth lock wash. din6797-j 5,3
00 00 78 0001 00-0000 none  exhaust gasket
00 00 79 0001 00-0000 none  ah screw din0912-m 5×12
80 00 00 1000 12-0153 none  carb SHA14/12 #52 ∅18
80 00 00 0100 12-0136 none  carb SHA14/9   #?? ∅18
00 80 00 0011 12-0120 none  carb SHA14/12 #52 ∅18 
00 79 80 0004 00-0000 none  antivibration rubber
00 00 81 0001 00-0000 none  circlip 17,5×1,2
82 00 00 1100 26-1044 $10.0 piston ring lower 39.0 x 1.5 GN
00 00 83 0001 00-0000 none  piston pin 8x12x31,4
00 00 84 0001 00-0000 none  ah screw din0921-m 6×60
00 00 86 0002 00-0000 none  ah screw din0912-m 5×20
00 00 88 0001 00-0000 none  hh-nut m12x1,25 6mm high
00 00 89 0001 00-0000 none  starting lever
00 00 90 0001 00-0000 none  reed valve housing s5-gs
00 00 91 0001 00-0000 none  gasket membran housing
00 00 92 0006 00-0000 none  stud bolt m6x33-11/16
00 00 93 0006 00-0000 none  spring ring din0127-b 6
00 00 94 0002 00-0000 none  self locking nut m 6 copper
00 00 95 0004 00-0000 none  hex nut din 934 m6
00 00 97 0001 00-0000 none  reed valve elementd=18,5mm’99
00 00 98 0001 00-0000 none  intake flange gasket d=22,5mm
00 00 99 0001 00-0000 none  gasket set seal rings
00 00 00 1100 26-0620 none  gasket set
00 00 00 0010 26-0625 none  gasket set
00 00 99 0001 00-0000 none  gasket set

Morini S5E, S5ET, S5NG, S5NG4

Morini S5 pistons

Morini Gyromat, MO, MO.1 and MO.K

 
MO Gyromat xxxx Gyromat covers 
MO “plain” xxxxx  “plain” covers
MO Malaguti xxx   Malaguti covers, different start cable
MO1 Gyromat xx  late Gyromat covers
MO1 “any brand”  “any brand” covers for sticker labels

 
MO-K Gyrokick x  Gyrokick covers and starting parts
MO1-K Gyrokick   late Gyrokick covers and start parts

There are 3 different top ends (cylinder, piston and head):
’68-73 aluminum cyl iron sleeve  40.0 mm, piston 12 x 16
’72-77 iron cylinder   all cast iron 40.4 mm, piston 12 x 19
’73-77 aluminum cyl iron sleeve  40.4 mm, piston 12 x 16

There are 3 different speed versions (on US models):
speed power sprocket carb intake cylinder  piston skirt
30mph 2.2hp   13T   14/12  Ø13   same xx 5mm cut
25mph 1.4hp   12T   14/12  Ø12   same xx 3mm cut
20mph 1.0hp   12T   14/9    Ø9   restricted 3mm cut

Here are four parts lists combined into one. Each list has a quantity column, showing how many of each part. The quantity can have different colors. Black quantity means all. Light grey quantity means some. Orange means early. Magenta means restricted.

Each list has an illustration with item numbers for each part. n/s means not shown.

1# Gyromat 1968-77?
MO Gyromat
MO Malaguti

2# MO 1973-76?
MO “plain”

3# MO.1 1975-79?
MO1 late Gyromat
MO1 “any brand”

4# MO.K 1970-79?
MO-K Gyrokick
MO1-K Gyrokick

01#
02#  4# qty
03#  4# 1234  Morini# price   description 
 n/s  n/s 1111 26-0505 $25.0 seal set 2-17.35.7, 2-16.24.5, 15.24.5
 n/s  n/s 1111 26-0506 none  gasket set original
 n/s  n/s 1111 26-05A   $28.0 gasket set Athena
001 001 1111 26-5016 none  semi case, right
002 002 1111 26-5017 none  semi case, left ∅80 2-bolt
003 000 100o 12-45G   none  clutch cover w/ cable stop, Gyromat
003 000 10o0 12-45M   none  clutch cover no cable stop Malaguti
003 000 010o 12-45P   none  clutch cover w/cable stop, plain
003 000 001o 12-4075 none  clutch cover w/cable stop, any brand
003 000 0010 12-45L    none  clutch cover with stop, late Gyromat
000 003 0001 12-4076 none  clutch cover Gyrokick
004 000 1100  12-20xx none  cyl-piston early-alu 40.0 (1.5-2.0hp)
004 000 1110 12-2050 none  cylinder-piston iron   40.4 (1.5-2.0hp)
004 004 1111 12-2049 $180  cylinder-piston iron   40.4 (1.0-1.5hp)
004 004 1111 12-2038 $195  cylinder-piston alum  40.4 (1.5-2.0hp)
005 000 1100 27-50xx none  cylinder head 46 x 46 ’70-type
005 005 0111 27-5019 $35.0 cylinder head 46 x 46 ’77-type
006 000 1000 12-44G   none  magneto cover, says Gyromat
006 000 1000 12-44M   none  magneto cover, says Malaguti
006 000 0100 12-44P   none  magneto cover, plain
006 000 0010 12-4074 $35.0 magneto cover, any brand
006 000 0010 12-44L   $39.0 magneto cover, late Gyromat
000 006 0001 12-4021 none  magneto cover, Gyrokick 
007 000 2220 29-1165 $0.70 bolt M6x25 slot xxx  R cover rr
007 000 0220 29-1986 $0.80 bolt M6x25 allen blk R cover rr
000 007 0001 29-1168 $1.00 bolt M6x35 slot xxx  case lo-rr
008 000 1110 29-1168 $1.00 bolt M6x35 slot xxx  case lo-rr
008 000 0110 29-1988 $0.60 bolt M6x35 allen blk case lo-rr
000 008 0008 29-1169 $1.00 bolt M6x40 slot xxx  case
009 000 8880 29-1169 $1.00 bolt M6x40 slot xxx  case
009 000 0880 29-1989 $1.20 bolt M6x40 allen blk case
000 009 0006 29-1170 $1.00 bolt M6x50? slot      R cover all 6
010 010 3330 29-1171 $1.00 bolt M6x45 slot xxx  R cover fr
010 000 0330 29-1991 $1.40 bolt M6x50 allen blk R cover fr
010 000 2222 29-1171 $1.00 bolt M6x45 slot xxx  Left cover
010 000 0220 29-1991 $1.40 bolt M6x50 allen blk Left cover
011 011 2222 23-5003 $7.00 stud, intake   M5 x 50 for MO, MO1, MO2
012 012 2222 13-1004 $0.40 nut, intake stud    M5 – 0.80 x 5 hex8
013 013 2222 23-5014 $2.50 stud, exhaust M5 x 30 for MO, MO1, MO2, M1
014 014 2222 13-3023 $1.50 nut, tall exhaust   M5 – 0.80 x 25 hex8or M101
015 015 4444 23-5001 $4.00 stud, cyl. M6 x 108 class 8.8 to hold 8 ft-lbs
015 015 4444 23-50A   $3.50 stud, cylinder M6 x 110 class 8.8
015 015 4444 23-5002 none  (use 23-5001) class 10.9 to hold 11 ft-lbs
016 016 4444 13-1001 $0.60 nut, cylinder head M6 – 1.00 x 6 hex10
017 017 4444 25-4001 $0.20 washer, plain   Ø6 Ø13 x 1.5 for head
018 018 3333 16-7005 none  roll pin, case center Ø8 Ø10 x 40 =Min?
019 019 1111 16-4030 $9.00 gasket, cylinder base   Ø6 46×46
020 000 1110 16-4031 $5.00 gasket, exhaust flange Ø5-36-Ø20
000 020 0001 16-4093 none  gasket, exhaust
021 021 1111 16-4032 $9.00 gasket, cylinder head   Ø6 46×46
022 022 1111 16-4033 $8.00 gasket, case center
023 023 1111 16-4034 $9.00 gasket, clutch cover
024 024 1111 16-4035 $5.00 gasket, intake lower x Ø5-36 19×10
025 025 1111 16-4036 $3.00 gasket, intake upper x Ø8-36 19×10
026 026 1111 13-6004 $7.00 spacer-insulator, intake Ø5-36 19×10
027 027 1111 25-1005 $42.0 intake, right type Ø13 x Ø16 (2.0 hp)
027 027 1111 25-1014 $27.0 intake, right type Ø12 x Ø16 (1.5 hp)
027 000 0110 25-1048 none  intake, right type   Ø9 x Ø16 (1.0 hp)
027 000 0010 25-1014 $35.0 intake, front type Ø12 x Ø16 (1.5 hp)
027 000 0010 25-1052 none  intake, front type Ø13 x Ø16 (2.0 hp)
028 028 2222 25-4012 $0.25 washer, spring  Ø5  Ø8  x 1.5
032 000 1100 27-3007 $10.0 oil filler/check plug M14-1.25
033 000 1000 16-4026 $4.00 gasket, oil filler plug   ring Ø14×19
034 033 1111 29-4132 $0.80 drain plug M8 x 10 hex
035 034 1111 16-4008 $1.00 seal washer, drain plug Ø8 x 14
036 031 0111 27-3007 $10.0 oil filler/check plug M14-1.25
037 032 0111 16-4026 $4.00 gasket, oil filler plug   ring Ø14×19
042 000 1110 10-0009 none  crank shaft, bushing-type rod 3 oil hole
000 035 0001 10-0015 none  crank shaft, bearing type rod
048 000 1110 11-5001 $8.00 bushing Ø11.75 Ø15.05 x 15 see note 1
000 036 0001 16-1005 $9.00 needle bearing Ø12 Ø15 x 15
000 037 0001 10-0015 none  connecting rod, bearing type
049 000 1110 11-0004 none  connecting rod with bushing
050 038 1111 26-8001 $10.0 pin, piston Ø12 x 31.5
051 039 2222 10-4001 $1.00 clip, wrist pin for Ø12 hole
052 000 1000 23-01xx  none  piston for early-alu cyl 12-16-17-40.0
052 040 1111 23-0130 none  piston for iron cyl 12-19-17-40.4 std.
052 040 1111 23-0130 $63.0 piston for iron cyl 12-19-17-40.4 GOL 0307
052 040 0000 23-0131 none  piston for iron cyl 12-19-17-40.6 1-over
052 040 0000 23-0131 none  piston for iron cyl 12-19-17-40.8 2-over
052 040 1111 23-0125 $70.0 piston for alu. cyl 12-16-17-40.4 std.
052 040 1111 23-0125 $60.0 piston for alu. cyl 12-16-17-40.4 generic
052 040 0000 23-0126 $72.0 piston for alu. cyl 12-16-17-40.6 1-over
052 040 0000 23-0126 $70.0 piston for alu. cyl 12-16-17-40.8 2-over
054 000 2000 26-10xx  $10.0 piston ring 40.0 x 1.5 GI standard
054 041 2222 26-1045 $9.00 piston ring 40.4 x 1.5 GI standard
054 041 0000 26-1046 $12.0 piston ring 40.6 x 1.5 GI oversize
054 041 0000 26-1046 $12.0 piston ring 40.8 x 1.5 GI oversize
056 042 2222 12-6001 $8.00 ball bearing, crankshaft 6203C3
057 043 2222 10-6001 $7.50 seal, crank shaft  17 x 35 x 8 (or 7)
058 044 1111 12-7025 $4.50 woodruff key, flywheel 2.5 x 3 x 9 M83
059 045 1111 13-3007 $6.00 nut, flywheel M8-1.25 × 16 hex15
060 046 1111 16-3004 none  rubber boot, spark plug cap
061 000 1110 23-7001 $6.00 spark plug cap generic
000 047 0001 23-7020 $6.00 spark plug cap generic
063 000 1110 20-0003 none  housing, clutch
63/1  53 1111 20-0012 $55.0 clutch assembly
064 055 2222 12-7020 $33.0 clutch shoe (ea)
065 056 2222 20-1033 $5.00 spring, extension, clutch
066 057 2222 12-7021 $9.50 clutch shoe master link #520
067 058 4444 25-7002 $3.00 spring anchor pin Ø3 x 14 substitute
068 000 1110 27-0005 none  clutch drum Ø84, bushing and gear set
000 052 0001 27-0021 none  clutch drum Ø84, bushing and gear set
069 000 1000 11-5009 none  bushing plain Ø15 Ø18 x 18.5 use 11-5010
069 059 1111 11-5010 none  bushing plain Ø15 Ø18 x 18.5
070 000 1110 12-7022 $35.0 clutch starting plate 20.8 deep
071 000 1110 10-4006 $8.00 clip, clutch plate for Ø84 hole
072 061 1111 13-1003 $2.50 nut, clutch M10-1.25 x 6 hex17
073 000 1110 25-4018 $5.00 washer, plain  Ø10 Ø21 x 1.8 clutch
073 000 1110 25-401S $2.00 substitute Ø10 Ø22 x 1.6
074 000 1110 20-1019 $15.0 spring, compression Ø27 Ø19 x 21
075 000 1110 19-0004 $15.0 lever, start rear-pull Ø12
075 000 1110 21-0004 none  start lever/shaft regular (front-pull)
076 000 1110 26-8014 none  pin, clutch lever
077 000 1110 20-1018 $8.00 spring, torsion, starter lever
077 000 1110 20-1022 none  spring, torsion, starter lever use 20-1018
078 000 1110 10-7002 $2.00 o-ring, starting lever Ø2 x 9 id (13 od)
079 060 1111 25-4005 $7.00 washer, shim Ø15 Ø22 x 0.6 before drum
080 060 1111 25-4005 $7.00 washer, shim Ø15 Ø22 x 0.6 after drum
082 061 1111 13-1003 $2.50 nut, clutch M10-1.25 x 6 hex17
083 000 1110 25-0001 $45.0 gear primary (driven) 52T x 14.2 (new but rusty)
000 062 0001 25-0003 none  gear primary (driven)
084 000 1110 10-1028 none  shaft, prim. with gear 10T x ???
000 063 0001 10-1059 none  shaft, prim. with gear
085 064 1111 10-1029 none  shaft, drive with gear 26T x ???
087 065 2222 25-4005 $7.00 washer, shim   Ø15 Ø22 x 0.6  prim. shaft
088 066 2222 25-4040 $7.00 washer, shim Ø13 Ø18 x 0.2
089 067 2222 12-6002 $6.00 ball bearing, drive shaft #6202 15 x 35 x 11
090 068 1111 11-5002 none  bushing with lip, prim. shaft Ø13 Ø17 x 17
091 069 1111 11-5003 none  bushing with lip, drive shaft Ø13 Ø?? x ??
092 000 1110 10-6003 $6.00 seal, drive shaft  15 x 24 x 7
000 070 0001 10-6008 $6.00 seal, drive shaft  15 x 24 x 5
093 000 1110 23-2506 $15.0 sprocket 12T tapered, keyed
093 071 1111 23-2501 $15.0 sprocket 13T tapered, keyed
094 072 1111 13-1002 $10.0 nut, sprocket M12-1.25 x 6 hex17
095 073 1111 12-7002 $5.00 key, sprocket M96 3.0 x 4.7 x 12.3
000 080 0001 19-1031 none  kick lever
000 081 0001 23-1039 none  kick lever pin
000 082 0001 25-4023 none  washer, plain
000 083 0001 16-3015 none  rubber bumper
000 084 0001 20-1059 none  kick start spring
000 085 0001 10-0038 none  start shaft
000 086 0001 10-7003 none  start shaft o-ring
000 087 0001 18-4022 none  coupling claw
000 088 0001 20-1070 none  coupling spring
000 089 0001 18-1099 none  starting gear
098 000 1110 10-1020 none  shaft, pedal
099 000 1110 23-2543 none  pedal sprocket 17T
099 000 1110 23-2507 none  pedal sprocket 19T
100 000 1110 20-6001 none  coupling claw (collar)
101 000 1110 20-1015 none  spring, coupling claw, pedal
102 000 1110 10-5005 $1.50 snap ring, outer for Ø16 shaft
103 091 1110 25-4007 none  washer, plain  Ø16 Ø26?x1.5?
000 092 0001 10-5005 $1.50 snap ring, outer for Ø16 shaft
000 093 0001 25-4054 none  washer
105 000 2220 10-6004 $7.50 seal, pedal shaft  16 x 24 x 5
106 000 1110 12-7016 $12.0 pedal chain #35 x 24 link Regina ASA35
107 000 1110 23-7002Dnone pedal arm D right 4¾x1¼” 434R use 502R
107 000 0000 23-700R $18.0 pedal arm D right   5 x1½” 502R
108 000 1110 23-7002Snone pedal arm S left    4¾x1¼” 434L use 502L
108 000 0000 23-700L $20.0 pedal arm S left      5 x1½” 502L
109 000 2220 12-7017 $2.00 pedal wedge pin Ø9.0 H-134
111 000 1000 12-0008 none  carb SHA14/12 #50 fits 16 use 12-0012
111 104 1111 12-0012 none  carb SHA14/12 #50 fits 16 (2.0, 1.4 hp)
111 104 1111 12-00A   $73.0 carb SHA14/12 #50 fits 16mm intake
111 000 1110 12-0061 none  carb SHA14/9   #43 fits 16 MO1,2 (1.0 hp)
112 000 1110 7758-85 $23.0 air cover thin #36 with 2 inlet tubes #40
000 105 1111 15-0006 $23.0 air cover thin #36 with 2 inlet tubes #40
113 101 1111 29-0034 none  magneto Dansi 101286 ign gnd internal
113 000 1110 29-0045 $330. magneto Dansi 101765 ign gnd external
114 000 2000 29-6021 $1.00 bolt M4 x 12 phil. pan stator  use 29-6022
114 102 0222 29-6022 $0.70 bolt M4 x 12 phil wide stator
115 000 1110 16-3008 $3.00 grommet, magneto int spark 2-thin 1-thick
115 000 1110 16-3022 none  grommet, magneto ext spark 3-thin holes
000 103 0002 16-3014 none  grommet
118 000 1110 12-7027 $3.50 spark plug replacement NGK B6ES
000 100 0001 12-7076 $3.50 spark plug
119 000 1110 21-4002 none  start cable adapter original (front-pull)

Note 1: The piston pin bushing requires reaming to ∅12.0 and drilling after it is pressed in, with an adjustable reamer and a precision holder tool.

20-0012 inner side

20-0012 with 13-5031

20-0012 outer side

27-0005a

12-7020

12-7014

Morini Pistons in 2013

Morini Convert and MO.2

 
MO2 Convert
MO2 Duomatic x  different covers
MO2 “any brand” different blank covers for re-branding

There are 3 different top ends (cylinder, piston and head):
’68-73 aluminum cyl iron sleeve  40.0 mm, piston 12 x 16
’72-77 iron cylinder   all cast iron 40.4 mm, piston 12 x 19
’73-77 aluminum cyl iron sleeve  40.4 mm, piston 12 x 16

There are 2 different speed versions (on US models):
speed power sprocket carb intake cylinder  piston skirt
30mph 2.2hp   13T   14/12  Ø13   same xx 5mm cut
25mph 1.4hp   12T   14/12  Ø12   same xx 3mm cut

Here are two parts lists combined into one. Each list has a quantity column, showing how many of each part. The quantity can have different colors. Black quantity means all. Light grey quantity means some. Orange means early. Magenta means restricted.

Each list has an illustration with item numbers for each part. n/s means not shown.

1# Convert 1973-77?
MO2 Convert
MO2 Malaguti Duomatic

2# MO.2 1975-79?
MO2 “any brand”

01# qty
02# 12  Morini# price   description 
 n/s 11 26-0508 $29.0 seal set MO2 1-47, 1-48, 2-113, 1-104
 n/s 11 26-0506 $35.0 gasket set original
 n/s 11 26-05A   $28.0 gasket set Athena
001 11 26-5032 none  semi case, right
002 11 26-5017 none  semi case, left ∅80 2-bolt
003 01 12-4034 $65.0 clutch cover for MO2 “any brand”
003 10 12-4034.1 none clutch cover for Convert
004 11 12-2038 $200-$170 cylinder-piston alum ’77 40.4
004 11 12-2049 none  cylinder-piston iron
005 11 27-5019 $35.0 cylinder head 46 x 46 ’77-type
006 10 12-44M   none  magneto cover, says Malaguti
006 11 12-4074 $35.0 magneto cover, plain 
007 11 29-1988 $0.60 bolt M6x35 allen blk case
008 88 29-1989 $1.20 bolt M6x40 allen blk case
009 01 29-1990 $1.20 bolt M6x45 allen blk R cover up-rr
009 02 29-1990 $1.20 bolt M6x45 allen blk L cover
009 30 29-1991 $1.40 bolt M6x50 allen blk L cover
9/1  10 29-1990 $1.20 bolt M6x45 allen blk R cover lo-rr
9/1  01 29-1991 $1.40 bolt M6x50 allen blk R cover lo-rr
010 33 29-1994 --N/A- bolt M6x65 allen blk R cover
101 11 29-1995 $1.20 bolt M6x70 allen blk R cover up-fr
011 22 23-5003 $7.00 stud, intake   M5 x 50
011 22 29-4069 none  stud, intake for iron cylinder
012 22 13-1004 $0.40 nut, intake stud    M5 – 0.80 x 5 hex8
013 22 23-5014 $2.50 stud, exhaust M5 x 30
014 22 13-3023 $1.50 nut, tall exhaust   M5 – 0.80 x 25 hex8
015 44 23-5001 $4.00 stud, cyl. M6 x 108 class 8.8 to hold 8 ft-lbs
015 44 23-50A   $3.50 stud, cylinder M6 x 110 class 8.8
016 44 13-1001 $0.60 nut, cylinder head M6 – 1.00 x 6 hex10
017 44 25-4001 $0.20 washer, plain   Ø6 Ø13 x 1.5 for head
018 22 16-7005 none  roll pin, case center Ø8 Ø10 x 40 =Min?
019 11 16-4030 $9.00 gasket, cylinder base   Ø6 46×46
020 10 16-4031 $5.00 gasket, exhaust flange Ø5-36-Ø20
020 01 16-4093 none  gasket, exhaust
021 11 16-4032 $9.00 gasket, cylinder head   Ø6 46×46
022 11 16-4033 $8.00 gasket, case center
023 11 16-4034 $9.00 gasket, clutch cover
024 11 16-4035 $5.00 gasket, intake lower x Ø5-36 19×10
241 20 16-7001 none  alignment tube Ø6 Ø8 x ?? up-fr, lo-rr
241 01 16-7001 none  alignment tube Ø6 Ø8 x ?? up-fr only
025 11 16-4036 $3.00 gasket, intake upper x Ø8-36 19×10
026 11 13-6004 $7.00 spacer-insulator, intake Ø5-36 19×10
027 10 25-1005 $42.0 intake, right type Ø13 x Ø16 (2.0 hp)
027 01 25-1014 $27.0 intake, right type Ø12 x Ø16 (1.5 hp)
027 01 25-1052 $35.0 intake, front type Ø13 x Ø16 Sebring
028 40 25-4012 $0.25 washer, spring  Ø5  Ø8  x 1.5
028 04 25-4013 $0.25 washer, spring  Ø5  Ø8  x 1.5
031 11 27-0009 $12.0 oil dip stick
032 11 16-4026 $1.00 dip stick gasket
033 11 29-4132 $0.80 drain plug M8 x 10 hex
034 11 16-4008 $1.00 gasket, oil drain plug x ring Ø8 x 14
035 11 10-0042 none  crank shaft, bushing-type rod
035 11 10-0046 none  crank shaft, bearing-type rod
041 11 26-8001 $10.0 pin, piston Ø12 x 31.5
042 22 10-4001 $1.00 clip, wrist pin for Ø12 hole
043 11 23-0125 $70.0 piston for alu. cyl 12-16-17-40.4 std.
043 11 23-0125 $60.0 piston for alu. cyl 12-16-17-40.4 generic
043 00 23-0126 $72.0 piston for alu. cyl 12-16-17-40.6 1-over
043 00 23-0126 $70.0 piston for alu. cyl 12-16-17-40.8 2-over
043 11 23-0130 none  piston for iron cyl 12-19-17-40.4 std.
043 11 23-0131 none  piston for iron cyl 12-19-17-40.6 1-over
044 22 26-1045 $9.00 piston ring 40.4 x 1.5 GI standard
044 00 26-1046 $12.0 piston ring 40.6 x 1.5 GI oversize
044 00 26-1046 $12.0 piston ring 40.8 x 1.5 GI oversize
045 11 12-6001 $8.00 ball bearing, left crank 6203C3
046 11 12-6007 $12.0 ball bearing, right crank 6204
047 22 10-6001 $7.50 seal, crank shaft  17 x 35 x 8 (or 7)
048 11 10-6012 $7.00 seal, crank shaft  20 x 35 x 8 (or 7)
049 11 12-7025 $4.50 woodruff key, flywheel 2.5 x 3 x 9 M83
050 11 13-3007 $6.00 nut, flywheel M8-1.25 × 16 hex15
051 11 16-3004 none  rubber boot, spark plug cap
052 11 23-7001 $6.00 spark plug cap generic
053 11 18-0001 $75.0 gear #1 driving 18Tx12.3 drum Ø84 w/bushing
054 11 11-5007 $18.0 bushing plain, clutch drum Ø18 Ø20 x 17.5
055 11 20-6004 $10.0 hub, clutch #1
056 22 12-7012 $20.0 clutch #1 shoe (each)  3-45° grooves
057 22 20-1033 $5.00 spring, extension, clutch
058 44 12-7021 $9.50 clutch shoe master link #520
059 88 25-7002 $3.00 spring anchor pin Ø3 x 14 substitute
060 11 20-0007 $40.0 clutch #1 assembly
061 11 11-5016 $15.0 inner steel tube, clutch hub Ø15 Ø19 x 32.5
062 11 11-5013 none  bushing plain, clutch hub Ø19 Ø22 x 31.75
063 11 16-0001 $35.0 gear #2 (driving) with start plate 22T
064 11 12-7014 $20.0 clutch #2 shoe (each)  2-90° grooves
065 11 13-0001 $45.0 starting clutch plate
066 11 27-1004 $12.0 starter clutch hub Ø28 hex28
067 11 20-1016 $15.0 spring, compression, starter
068 11 13-50xx $10.0 plate, starter, 3 Ø10 studs
068 11 13-5015 $15.0 plate, starter, 3 Ø8 studs for bushings
 n/s 11 16-3026 $18.0 bushing set of 3, starter Ø8 Ø10 x 8
069 11 25-4028 $19.0 washer, large  Ø28 Ø56 x 1.0
070 11 16-0003 none  starter thrust block (bearing)
072 11 23-1027 none  spiral pawl, starter for MO2
073 11 23-7026 none  plate, starter spiral anchor, 3-hole
074 33 29-6025 $2.00 bolt M5 x 5 phillips sunk starter
075 11 16-1008 none  roller bearing inner, R crank Ø10-Ø14 x 10
076 11 20-1036 $6.00 spring, extension, for MO2 starter
077 11 16-7010 $12.0 wire hook, starter cable for MO2
078 11 12-7061 none  inner cable original 1-ended Ø1.6 50″
078 11 12-706I  $5.00 inner cable subst. Ø1.2 50″ requires D14p
078 11 12-706S $12.0 cable subst. Ø1.2 43 x 50″ requires D14p
079 11 13-6036 $7.00 cable stop-guide, starter M10-1.25
080 11 16-3010 $2.50 rubber protector subst. for start cable
081 11 10-1036 $35.0 shaft, prim. with gear 10T x 17.0 (new but rusty)
082 11 10-1029 none  shaft, drive with gear 26T x ??? pre Jan’78 MO2
082 11 10-1076 none  shaft, drive with gear 26T x ??? after Jan’78 MO2
083 11 10-5009 $2.50 snap ring, outer for Ø22 shaft
084 11 25-4043 $10.0 washer, plain Ø22 Ø28 x 1.6
084 11 25-4043 $00.0 actually made of 2 or 3 thinner shims
085 22 20-1037 none  spring, compression, ratchet gear Ø4 x 9
086 11 12-0025 $85.0 gear #1 (driven) with ratchet ring & bushing 59T
088 11 13-6012 $8.00 spacer, 1st/2nd gear Ø15 Ø24 x 11
089 11 12-7029 $45.0 gear #2 (driven) 52T x 10.0 for MO2 (new but rusty)
090 11 12-7002 $5.00 key, main gear M96 3.0 x 4.7 x 12.3
091 11 11-5017 none  bushing plain, first gear 59T Ø17 Ø19 x 20
092 11 13-3017 $12.0 nut, prim. shaft   M14 – 1.25 x 8  hex19
093 11 25-4031 $2.00 washer, plain  Ø14 Ø26 x 1.5
094 11 10-5006 $2.00 snap ring, outer for Ø12 shaft
095 22 25-4026 none  washer, shim  Ø12 Ø18?x0.2?
096 11 12-6003 $7.00 ball bearing, prim. shaft #6201 12 x 32 x 10
097 11 10-1035 none  shaft, pedal
098 11 25-4030 $5.00 washer, 3-tab  Ø15 Ø30 x 0.6
099 11 16-4101 $2.50 gasket, starter cable, ring Ø10×14
100 33 25-4005 $7.00 washer, shim Ø15 Ø22 x 0.6  clutch drum
101 11 25-4040 $7.00 washer, shim Ø13 Ø18 x 0.2
102 11 12-6002 $6.00 ball bearing, drive shaft #6202 15 x 35 x 11
103 22 11-5002 none  bushing with lip, prim. shaft Ø13 Ø17 x 17
104 11 10-6003 $6.00 seal, drive shaft  15 x 24 x 5
105 11 23-2506 $15.0 sprocket 12T tapered, keyed
105 11 23-2501 $15.0 sprocket 13T tapered, keyed
106 11 13-1002 $10.0 nut, sprocket M12-1.25 x 6 hex17
107 11 12-7002 $5.00 key, sprocket M96 3.0 x 4.7 x 12.3 
108 10 23-2543 none  pedal sprocket 17T
108 01 23-2507 none  pedal sprocket 19T
109 11 20-6001 none  coupling claw (collar)
110 11 20-1015 none  spring, coupling claw, pedal
111 11 10-5005 $1.50 snap ring, outer for Ø16 shaft
112 33 25-4007 none  washer, plain  Ø16 Ø26?x1.5? 
113 22 10-6004 $7.50 seal, pedal shaft  16 x 24 x 5
114 11 12-7016 $12.0 pedal chain #35 x 24 link Regina ASA35
115 11 23-7002Dnone pedal arm D right 4¾x1¼” 434R use 502R
115 00 23-700R $18.0 pedal arm D right   5 x1½” 502R
116 11 23-7002Snone pedal arm S left    4¾x1¼” 434L use 502L
116 00 23-700L $20.0 pedal arm S left      5 x1½” 502L
117 22 12-7017 $2.00 pedal wedge pin Ø9.0 H-134
118 11 12-0012 none  carb SHA14/12 #50 fits 16 (2.0, 1.4 hp)
118 11 12-00A   $73.0 carb SHA14/12 #50 fits 16mm intake
118 11 7758-85 $23.0 air cover thin #36 with 2 inlet tubes #40
119 11 29-0034 none  magneto Dansi 101286 ign gnd internal
119 01 29-0045 $330. magneto Dansi 101765 ign gnd external
120 22 29-6022 $0.70 bolt M4 x 12 phil wide stator
121 11 16-3008 $3.00 grommet, magneto int spark 2-thin 1-thick
121 01 16-3022 none  grommet, magneto ext spark 3-thin holes
123 10 12-7076 none  spark plug
123 01 12-7027 $3.50 spark plug replacement NGK B6ES
124 22 26-8035 none  gear shaft pawl
125 11 13-1003 $2.50 clutch nut M10-1.25 x 6 hex17
126 11 25-4018 $5.00 clutch washer Ø10 Ø21 x 1.8
127 22 20-1017 $5.00 clutch #2 shoe spring
128 11 25-4041 none  washer
129 11 11-0015 none  con. rod, bearing type
130 11 26-8038 none  return spring pin
131 11 16-0002 $70.0 clutch #2 with gear 22T and start plate
132 11 11-5001 $8.00 bushing Ø11.75 Ø15.05 x 15 see note 1
132 11 16-1005 $9.00 needle bearing Ø12 Ø15 x 15

Note 1: The piston pin bushing requires reaming to ∅12.0 and drilling after it is pressed in, with an adjustable reamer and a precision holder tool.

Find out more about the Morini MO, MO1, MO2 Engine Parts »

Japan  Japan, China, Taiwan, Korea, Viet Nam, and others follow JIS Japan Industry Standards. That is why some things from different Asian countries are the same, such as speedometer threads.

Jap-Eu  European countries follow DIN Deutches Institut fur Normung. The Honda PC50 and PA50 mopeds are made in Belgium and have some European-made components, such as the speedometer, speedo driver and fuel petcock. The PC50 speedo cable is Euro on top, and Japan on the bottom. The PA50 speedo cable is Japan on top, and Euro on the bottom.

figure refers to the parts manual (A is AMS, G is Grycner, F is Trac), parts group illustration, and part number in the illustration. 

colors: US models  Euro models

A. Speedometers

  Speedometers

Tatung and Chaolong speedometers, made in Taiwan,  are on US models of 1970’s-80’s Taiwan-made mopeds; Angel, Clinton, General, Grycner, Jui Li, Indian and others. They are also on 1970’s Indian motorcycles. 

figure  Grycner#  price  
G9-1  2150-8099 $45.0 speedometer bare Tatung ∅76 mm, 50 mph
10-7  1150-8092 $00.0 M12-1.0 thread, 2.7 cable hole, 88mm cover
G9-2  2150-8098 $9.00 mounting plate
G9-3  2150-8095 $5.00 rubber grommet substitute
G9-4  621-00106 $0.20 plain washer M6
G9-5  622-01106 $0.20 spring washer M6
G9-6  616-00106 $0.30 nut M6
G9-7  2150-8094 $1.50 bulb ba9s 6V 1.5w
G9-8  2150-8096 $19.0 wire harness with bulbs
Jui Li mopeds with spoke wheels ∅80 drum
’78-79 AMS Sierra 50, Sachs 505-1A 
’78-80 Clinton, Sachs 505-1A engine 
’79-85 General 5 Star, Minarelli V1
’79-80 General 5 Star ST, Minarelli V1
’78-79 Grycner, Sachs 505-1A or 1B
’78-79 Jui Li Honey 50, Sachs 505-1A
’77-79 Lazer Sport 50, Minarelli V1
Her Chee mopeds with spoke wheels ∅110 drum
’84-85 AMS Sierra 50, Sachs 505-1A
’84-85 AMS Tahoe Sport, Sachs 505-1A
’79-80 Foxi 47, Sachs 505-1A engine
’80-85 General 5 Star ST, Sachs 505 engine
’80-82 Sachs G4, Sachs 505 engine
Jui Li mopeds with mag wheels ∅90 drum
’79-80 General 5 Star LTD, Minarelli V1
Merida or Mira mopeds
’78-81 Indian AMI-50, four-stroke engine
Merida motorcycles
’73-75 Indian ME-74, 76, 100, 125, ML-100
’75-76 Indian MI-125, 175, MS-100, 175