Plate 1
ENGINE AND GEARBOX

Bantam

21-4 Cylinder barrel stud nut 2-923 Cylinder barrel stud washer 90-2 Cylinder head 66-102 Sparking plug washer 65-112 Sparking plug 90-85 Gudgeon pin circlip 90-84 Gudgeon pin 90-136 Piston only with pegs 90-9 Compression ring 90-123 Piston ring peg 90-162 Crankcase with fixed fittings (offside) 90-111 Cylinder barrel stud 2-2894 Dipstick washer (fibre) 90-112 Dipstick 90-117 Primary chain cover gasket 90-139 Primary chain cover complete 90-124 Primary chain cover screw (long) 90-262 Primary chain cover and drain plug washer (fibre) 89-3208 Gearchange lever rubber 90-268 Gearchange lever 90-135 Kickstart pedal rubber 90-91 Kickstart pedal 21-62 Gearchange lever bolt 2-2580 Gearchange lever bolt washer 21-29 Gearchange lever bolt nut 90-125 Primary chain cover screw (short) 65-3062 Primary chain cover screw 90-10 Crankshaft bearing 90-108 Crankcase dowel bush 90-75 Mainshaft bearing circlip 90-11 Mainshaft bearing 90-368 Clutch cover screw 29-3319 Clutch cover screw washer (shakeproof) 90-336 Clutch cover 90-27 Clutch casing snap ring 90-341 Clutch spring cup plate 90-83 Layshaft bush 90-82 Layshaft gear 90-81 Layshaft gear 90-351 Layshaft with gear 90-353 Layshaft gear only 90-50 Gear selector fork shaft 90-51 Gear selector fork spring ring 90-54 Gear selector fork spring cup 90-53 Gear selector fork spring 90-88 Kickstart quadrant spindle 90-179 Kickstart quadrant 90-89 Kickstart quadrant spring 90-90 Kickstart quadrant spring plate 90-58 Gear selector arm swivel pin 90-57 Gear selector arm bracket (not sold separately) 90-173 Gear selector arm 90-63 Gear selector arm bracket lockwasher 90-62 Gear selector arm bracket screw 90-94 Gear indicator lever spindle 1-6008 Gear indicator lever bolt 90-93 Gear indicator lever 1-4616 Gear indicator lever bolt nut 90-98 Clutch push rod (short) 90-99 Clutch push rod (long) 90-132 Clutch push bush (rubber) 90-61 Gear selector swivel pin peg 90-60 Gear selector arm spring cup 90-59 Gear selector arm retaining spring 90-83 Layshaft bush 90-52 Gear selector fork peg (not sold separately) 90-49 Gear selector fork (not sold separately) 90-74 Mainshaft gear (22T) 90-65 Mainshaft primary gear (28T) 90-67 Mainshaft primary gear bush 89-3006 Mainshaft oil seal 90-72 Mainshaft oil seal housing 90-71 Gearbox sprocket distance sleeve 90-68 Gearbox sprocket (15T) (Standard) 90-70 Gearbox sprocket lockwasher 90-172 Gearbox sprocket nut 90-256 Flywheel magneto cam screw (Wico Pacy) 90-258 Flywheel magneto cam screw washer (Wico Pacy) 90-257 Flywheel magneto cam screw washer (Wico Pacy) 90-444 Flywheel and generator complete (Wico Pacy) 11B-55AAA Generator flywheel only (Wico Pacy) 90-125 Crankcase fixing screw (long) 89-366 Clutch adjusting screw locknut 90-105 Clutch adjusting screw 2-498 Mainshaft oil seal housing screw 29-3319 Mainshaft oil seal housing washer (shakeproof) 90-106 Clutch operating lever cap 90-184 Clutch operating lever bush 90-261 Crankcase drain plug 90-122 Clutch operating lever spring 90-180 Clutch operating lever complete 90-272 Mainshaft thrust plate gasket 90-133 Mainshaft bearing thrust plate 90-73 Mainshaft oil seal housing gasket 90-64 Gearbox mainshaft 90-76 Chain chainwheel distance bush 90-24 Chain chainwheel circlip 90-40 Kickstart pinion spring retainer 90-39 Kickstart pinion spring 90-177 Kickstart pinion 90-134 Primary chain 90-120 Crankshaft sprocket (17T) 90-163 Crankcase with fixed fittings (nearside) 90-125 Crankcase fixing screw (long) 90-12 Gearbox sleeve pinion bearing 35-1896 Crankshaft sprocket key 90-121 Crankshaft sprocket lockwasher 90-340 Crankshaft nut 90-152 Crankshaft shim 90-506 Flywheel spindle (nearside) 90-171 Flywheel cover plate 90-596 Flywheel with spindle (nearside) 90-499 Big end thrust washer 90-497 Connecting rod only 90-498 Crankpin 90-594 Big end roller 90-597 Flywheel complete (offside) 90-505 Flywheel spindle (offside) 89-3023 Crankshaft bearing 90-284 Crankshaft oil seal 2-2894 Drain plug washer (fibre) 90-115 Drain plug 90-283 Clutch chainwheel thrust washer 90-28 Clutch hub 90-37 Clutch driven plate 90-34 Clutch driving plate complete 90-32 Clutch actuating plate 90-47 Gear selector arm spring socket 90-46 Gear selector arm spring 90-241 Gear selector arm ball 90-29 Clutch spring 90-30 Clutch spring cup 15-39 Mainshaft washer 90-340 Mainshaft nut 90-1 Cylinder barrel 90-273 Cylinder base gasket 89-149 Flywheel magneto key 90-246 Flywheel magneto cam key 90-243 Crankshaft distance collar 89-3023 Crankshaft bearing 90-265 Exhaust pipe union nut 90-3002 Exhaust pipe union nut washer 90-3024 Exhaust pipe 65-2158 Crankcase screw 90-147 Crankcase oil seal 28-2080 Crankcase cover grease nipple 90-183 Crankcase cover with fixed fittings (nearside) 90-248 Crankcase cover fixing screw (short) 90-260 Flywheel magneto fixing nut washer 90-259 Flywheel magneto fixing nut 65-2158 Flywheel magneto fixing screw 2-2580 Flywheel magneto fixing screw washer 90-285 Crankcase generator seal 33-1118 Release valve 90-287 Cylinder head (Competition) 90-450 Mainshaft oil seal housing (use only with 90-299 14T rear chain sprocket) 65-3427 Kickstart crank pedal (Competition) 29-5156 Kickstart pedal bolt (Competition) 66-4707 Kickstart pedal bolt washer (Competition) 2-220 Kickstart crank spring bolt 29-541 Kickstart crank spring bolt washer 65-3428 Kickstart crank pedal spring 90-348 Kickstart crank only 90-347 Kickstart crank complete 90-130 Connecting rod gudgeon pin bush 90-110 Crankcase dowel 90-175 Clutch chainwheel complete 90-109 Dowel bush 66-102 Exhaust lifter washer (Competition) 90-55 Gearchange selector fork circlip 90-346 Crankcase screw washer 89-5015 Clutch push rod ball
Plate Ref. Number.ModelsPart No.DescriptionNumber per set
1 Bantam 21-4 Cylinder barrel stud nut 4
2 Bantam 2-923 Cylinder barrel stud washer 4
3 Bantam 90-2 Cylinder head 1
4 Bantam 66-102 Sparking plug washer 1
5 Bantam 65-112 Sparking plug 1
6 Bantam 90-85 Gudgeon pin circlip 2
7 Bantam 90-84 Gudgeon pin 1
8 Bantam 90-136 Piston only with pegs (Standard) 1
  Bantam 90-276 Piston only with pegs (1st oversize) 1
  Bantam 90-435 Piston only with pegs (2nd oversize) 1
9 Bantam 90-9 Compression ring 2
  Bantam 90-278 Compression ring (1st oversize) 2
  Bantam 90-394 Compression ring (2nd oversize) 2
10 Bantam 90-123 Piston ring peg 2
11 Bantam 90-162 Crankcase with fixed fittings (offside) 1
12 Bantam 90-111 Cylinder barrel stud 4
13 Bantam 2-2894 Dipstick washer (fibre) 1
14 Bantam 90-112 Dipstick 1
15 Bantam 90-117 Primary chain cover gasket 1
16 Bantam 90-139 Primary chain cover complete 1
17 Bantam 90-124 Primary chain cover screw (long) 2
18 Bantam 90-262 Primary chain cover and drain plug washer (fibre) 7
19 Bantam 89-3208 Gearchange lever rubber 1
20 Bantam 90-268 Gearchange lever 1
21 Bantam 90-135 Kickstart pedal rubber 1
22 Bantam 90-91 Kickstart pedal 1
23 Bantam 21-62 Gearchange lever bolt 1
  Bantam 21-62 Kickstart pedal bolt 1
24 Bantam 2-2580 Gearchange lever bolt washer 1
  Bantam 2-2580 Kickstart pedal bolt washer 1
25 Bantam 21-29 Gearchange lever bolt nut 1
  Bantam 21-29 Kickstart pedal bolt nut 1
26 Bantam 90-125 Primary chain cover screw (short) 1
27 Bantam 65-3062 Primary chain cover screw 2
28 Bantam 90-10 Crankshaft bearing 1
29 Bantam 90-108 Crankcase dowel bush 2
30 Bantam 90-75 Mainshaft bearing circlip 1
31 Bantam 90-11 Mainshaft bearing 1
32 Bantam 90-368 Clutch cover screw 3
33 Bantam 29-3319 Clutch cover screw washer (shakeproof) 3
34 Bantam 90-336 Clutch cover 1
35 Bantam 90-27 Clutch casing snap ring 1
36 Bantam 90-341 Clutch spring cup plate 1
37 Bantam 90-83 Layshaft bush 1
38 Bantam 90-82 Layshaft gear (32T) 1
  Bantam 90-448 Layshaft gear (28T) (close ratio) (as required) 1
39 Bantam 90-81 Layshaft gear (25T) 1
  Bantam 90-449 Layshaft sliding gear (25T) (close ratio) (as required) 1
  Bantam 90-457 Layshaft sliding gear (26T) (wide ratio) (as required) 1
40 Bantam 90-351 Layshaft with gear (19T) 1
  Bantam 90-476 Layshaft with gear (23T) (close ratio) (as required) 1
41 Bantam 90-353 Layshaft gear only (19T) 1
  Bantam 90-447 Layshaft gear (23T) (close ratio) (as required) 1
42 Bantam 90-50 Gear selector fork shaft 1
43 Bantam 90-51 Gear selector fork spring ring 1
44 Bantam 90-54 Gear selector fork spring cup 1
45 Bantam 90-53 Gear selector fork spring 1
46 Bantam 90-88 Kickstart quadrant spindle 1
47 Bantam 90-179 Kickstart quadrant 1
48 Bantam 90-89 Kickstart quadrant spring 1
49 Bantam 90-90 Kickstart quadrant spring plate 1
50 Bantam 90-58 Gear selector arm swivel pin (not sold separately) 1
  Bantam 90-56 Gear selector arm bracket complete 1
51 Bantam 90-57 Gear selector arm bracket (not sold separately) 1
52 Bantam 90-173 Gear selector arm 1
53 Bantam 90-63 Gear selector arm bracket lockwasher 2
54 Bantam 90-62 Gear selector arm bracket screw 2
55 Bantam 90-94 Gear indicator lever spindle 1
56 Bantam 1-6008 Gear indicator lever bolt 1
57 Bantam 90-93 Gear indicator lever 1
58 Bantam 1-4616 Gear indicator lever bolt nut 1
59 Bantam 90-98 Clutch push rod (short) 1
60 Bantam 90-99 Clutch push rod (long) 1
61 Bantam 90-132 Clutch push bush (rubber) 1
62 Bantam 90-61 Gear selector swivel pin peg 1
63 Bantam 90-60 Gear selector arm spring cup 1
64 Bantam 90-59 Gear selector arm retaining spring 1
65 Bantam 90-83 Layshaft bush 1
66 Bantam 90-52 Gear selector fork peg (not sold separately) 1
  Bantam 90-190 Gear selector fork and peg 1
67 Bantam 90-49 Gear selector fork (not sold separately) 1
68 Bantam 90-74 Mainshaft gear (22T) 1
  Bantam 90-458 Mainshaft sliding gear (21T) (wide ratio) (as required) 1
69 Bantam 90-65 Mainshaft primary gear (28T) 1
  Bantam 90-474 Primary drive gear (close ratio) (as required) (24T) 1
70 Bantam 90-67 Mainshaft primary gear bush 2
71 Bantam 89-3006 Mainshaft oil seal 1
72 Bantam 90-72 Mainshaft oil seal housing 1
73 Bantam 90-71 Gearbox sprocket distance sleeve 1
74 Bantam 90-68 Gearbox sprocket (15T) (Standard) 1
  Bantam 90-473 Gearbox sprocket (16T) (Competition only) 1
  Bantam 90-299 Gearbox sprocket (14T) (Competition only) 1
75 Bantam 90-70 Gearbox sprocket lockwasher 1
76 Bantam 90-172 Gearbox sprocket nut 1
77 Bantam 90-256 Flywheel magneto cam screw (Wico Pacy) 1
78 Bantam 90-258 Flywheel magneto cam screw washer (Wico Pacy) 1
79 Bantam 90-257 Flywheel magneto cam screw washer (Wico Pacy) 1
80 Bantam 90-444 Flywheel and generator complete (Wico Pacy) 1
81 Bantam 11B-55AAA Generator flywheel only (Wico Pacy) 1
  Bantam 90-295 Generator fixing stud (Lucas generator) 4
  Bantam 90-296 Generator (Lucas) 1
  Bantam 21-29 Generator fixing stud nut (Lucas) 2
  Bantam 90-346 Generator fixing stud washer (Lucas) 4
  Bantam 90-297 Generator extracting screw (Lucas) 1
  Bantam 90-298 Rotor fixing screw (Lucas) 1
  Bantam 90-118 Generator inspection cover (Lucas) 1
  Bantam 1-4606 Generator inspection cover screw (Lucas) 2
82 Bantam 90-125 Crankcase fixing screw (long) 2
83 Bantam 89-366 Clutch adjusting screw locknut 1
84 Bantam 90-105 Clutch adjusting screw 1
85 Bantam 2-498 Mainshaft oil seal housing screw 5
86 Bantam 29-3319 Mainshaft oil seal housing washer (shakeproof) 5
87 Bantam 90-106 Clutch operating lever cap 1
88 Bantam 90-184 Clutch operating lever bush 1
89 Bantam 90-261 Crankcase drain plug 1
90 Bantam 90-122 Clutch operating lever spring 1
91 Bantam 90-180 Clutch operating lever complete 1
92 Bantam 90-272 Mainshaft thrust plate gasket 1
93 Bantam 90-133 Mainshaft bearing thrust plate 1
94 Bantam 90-73 Mainshaft oil seal housing gasket 1
95 Bantam 90-64 Gearbox mainshaft 1
  Bantam 90-445 Gearbox mainshaft (close ratio) (as required) 1
96 Bantam 90-76 Chain chainwheel distance bush 1
97 Bantam 90-24 Chain chainwheel circlip 1
98 Bantam 90-40 Kickstart pinion spring retainer 1
99 Bantam 90-39 Kickstart pinion spring 1
100 Bantam 90-177 Kickstart pinion 1
101 Bantam 90-134 Primary chain 1
102 Bantam 90-120 Crankshaft sprocket (17T) 1
103 Bantam 90-163 Crankcase with fixed fittings (nearside) (Wico Pacy generator) 1
  Bantam 90-164 Crankcase with fixed fittings (nearside) (Lucas generator) 1
104 Bantam 90-125 Crankcase fixing screw (long) 2
105 Bantam 90-12 Gearbox sleeve pinion bearing 1
106 Bantam 35-1896 Crankshaft sprocket key 1
107 Bantam 90-121 Crankshaft sprocket lockwasher 1
108 Bantam 90-340 Crankshaft nut 1
109 Bantam 90-152 Crankshaft shim (.003") (as required)
  Bantam 90-153 Crankshaft shim (.004") (as required)
  Bantam 90-154 Crankshaft shim (.005") (as required)
  Bantam 90-155 Crankshaft shim (.010") (as required)
110 Bantam 90-506 Flywheel spindle (nearside) (fitted on and after Engine No. BD2/101) (not sold separately) 1
  Bantam 90-605 Flywheel spindle (nearside) (fitted on and after Engine No. BD2L/101) (not sold separately) 1
111 Bantam 90-171 Flywheel cover plate 1
112 Bantam 90-596 Flywheel with spindle (nearside) (fitted on and after Engine No. BD2/101) (Wico Pacy) 1
  Bantam 90-603 Flywheel with spindle (nearside) (fitted on and after Engine No. BD2L/101) (Lucas) 1
113 Bantam 90-499 Big end thrust washer (fitted on and after Engine Nos. BD2/101 and BD2L/101) 2
  Bantam 90-601 Connecting rod with crankpin, rollers and gudgeon pin bush 1
114 Bantam 90-497 Connecting rod only (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately)1
115 Bantam 90-498 Crankpin (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) 1
116 Bantam 90-594 Big end roller (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) 14
117 Bantam 90-597 Flywheel complete (offside) (fitted on and after Engine No. BD2/101) (Wico Pacy) 1
  Bantam 90-604 Flywheel complete (offside) (fitted on and after Engine No. BD2L/101) (Lucas) 1
118 Bantam 90-505 Flywheel spindle (offside) (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately)1
119 Bantam 89-3023 Crankshaft bearing 1
120 Bantam 90-284 Crankshaft oil seal 1
121 Bantam 2-2894 Drain plug washer (fibre) 1
122 Bantam 90-115 Drain plug 1
123 Bantam 90-283 Clutch chainwheel thrust washer 1
124 Bantam 90-28 Clutch hub 1
125 Bantam 90-37 Clutch driven plate 2
126 Bantam 90-34 Clutch driving plate complete 3
127 Bantam 90-32 Clutch actuating plate 2
128 Bantam 90-47 Gear selector arm spring socket 1
129 Bantam 90-46 Gear selector arm spring 1
130 Bantam 90-241 Gear selector arm ball 1
131 Bantam 90-29 Clutch spring 6
132 Bantam 90-30 Clutch spring cup 6
133 Bantam 15-39 Mainshaft washer 1
134 Bantam 90-340 Mainshaft nut 1
135 Bantam 90-1 Cylinder barrel 1
136 Bantam 90-273 Cylinder base gasket 1
137 Bantam 89-149 Flywheel magneto key 1
138 Bantam 90-246 Flywheel magneto cam key 1
  Bantam 90-294 Flywheel spindle peg (Lucas generator) 1
139 Bantam 90-243 Crankshaft distance collar 1
140 Bantam 89-3023 Crankshaft bearing 1
141 Bantam 90-265 Exhaust pipe union nut 1
142 Bantam 90-3002 Exhaust pipe union nut washer 1
143 Bantam 90-3024 Exhaust pipe (Standard rigid and spring frame) 1
  Bantam 90-3033 Exhaust pipe (Competition rigid and spring frame) 1
144 Bantam 65-2158 Crankcase screw 9
145 Bantam 90-147 Crankcase oil seal 1
  Bantam 90-284 Crankcase oil seal (Lucas generator) 1
146 Bantam 28-2080 Crankcase cover grease nipple (nearside) 1
  Bantam 15-5290 Crankcase cover grease nipple (offside) (Lucas) 1
147 Bantam 90-183 Crankcase cover with fixed fittings (nearside) (Wico Pacy) 1
  Bantam 90-162 Crankcase cover with fixed fittings (offside) (Lucas) 1
148 Bantam 90-248 Crankcase cover fixing screw (short) 2
149 Bantam 90-260 Flywheel magneto fixing nut washer 1
150 Bantam 90-259 Flywheel magneto fixing nut 1
151 Bantam 65-2158 Flywheel magneto fixing screw 3
152 Bantam 2-2580 Flywheel magneto fixing screw washer 3
153 Bantam 90-285 Crankcase generator seal 1
154 Bantam 33-1118 Release valve 1
155 Bantam 90-287 Cylinder head (Competition) 1
156 Bantam 90-450 Mainshaft oil seal housing (use only with 90-299 14T rear chain sprocket) 1
157 Bantam 65-3427 Kickstart crank pedal (Competition) 1
158 Bantam 29-5156 Kickstart pedal bolt (Competition) 1
159 Bantam 66-4707 Kickstart pedal bolt washer (Competition) 1
160 Bantam 2-220 Kickstart crank spring bolt 1
161 Bantam 29-541 Kickstart crank spring bolt washer 1
162 Bantam 65-3428 Kickstart crank pedal spring 1
163 Bantam 90-348 Kickstart crank only 1
164 Bantam 90-347 Kickstart crank complete 1
165 Bantam 90-130 Connecting rod gudgeon pin bush 1
166 Bantam 90-110 Crankcase dowel 2
167 Bantam 90-175 Clutch chainwheel complete 1
168 Bantam 90-109 Dowel bush 2
169 Bantam 66-102 Exhaust lifter washer (Competition) 1
170 Bantam 90-55 Gearchange selector fork circlip 1
171 Bantam 90-346 Crankcase screw washer 11
172 Bantam 89-5015 Clutch push rod ball 1