Cylinder & flywheel
Key | Part Number | Description | Per | Models |
NI | PACK-ADV-007 | Oil feed/return pack | A | All |
NI | PACK-INTER-002 | Top end overhaul pack | A | All |
1 | 40-0162 | Rocker spindle nut | 2 | All |
2 | 40-0159 | Sealing washer | 2 | All |
3 | 40-0157 | Spindle washer | 2 | All |
4 | 40-0183 | Rocker oil feed pipe | 1 | 1961-65 |
4A | 47-8397 | Rocker oil feed pipe, rubber piece | 1 | WD Models |
4B | 40-0183 | Rocker oil feed pipe, shorten to required length | 1 | WD Models |
5 | 40-8327 | Rocker feed joint pipe | 1 | 1965 |
6 | 41-0043 | Stud, cylinder | 4 | All |
7 | 41-0044 | Stud 5/16×2 25/32 | 2 | 1965 onwards |
8 | 24-5160 | Nut, 5/16″x26 TPI | 2 | 1965 onwards |
9 | 76-0012 | Washer | 2 | 1965 onwards |
10 | 02-0046 | Nut, 3/8×26 TPI | 4 | All |
11 | 02-0130 | Washer 3/8 | 4 | All |
12 | 41-0041 | Base gasket | 1 | All |
13 | 41-0055A | Big end assembly needle roller | 1 | 1960-61 |
13 | 41-0181A | Big end assembly | 1 | 1962-64 Star / SS90 |
13 | 41-0233 | Con-rod, genuine BSA new old stock | 1 | 1965 onwards |
13 | 41-0234A | Big end assembly | 1 | 1965 Star / SS90 |
13 | 41-0234B | Big end assembly needle roller | 1 | 1965 |
14 | 40-0572 | Roller cage | 1 | 1965 onwards |
15 | 26-0650 | Clutch roller (usually 22 off) | 24 | 1965 onwards |
16 | 41-0183 | Outer race | 1 | 1965 onwards |
17 | 41-0159 | Roller big end subtitution for plain rod | 1 | 1961-64 |
17 | 40-0720 | C15 Crank Pin | 1 | 1965 onwards |
18 | 41-0101 | Gudgeon pin | 1 | All |
19 | 66-0492 | Small end bush | 1 | All |
20 | 41-0157 | Drive side shaft | 1 | All Except Enduro |
20 | 40-0470 | Drive side shaft | 1 | 1965 Enduro |
21 | 40-0043 | Screw, sludge trap | 1 | All |
22 | 41-0042 | Cylinder barrell | 1 | 1961-64 |
22 | 41-0065 | Cylinder barrell | 1 | 1965 onwards |
23 | 41-0046 | Flywheel half, left hand | 1 | 1961-64 |
23 | 41-0292 | Flywheel half, left hand | 1 | 1965 Enduro |
23 | 41-0284 | Flywheel half, left hand | 1 | 1965 Star / SS90 onwards |
24 | 41-0158 | Timing side spindle | 1 | All |
25 | 41-0048 | Flywheel half, right hand | 1 | 1961-64 |
25 | 41-0288 | Flywheel half, right hand | 1 | 1965 onwards |
26 | 66-0954 | Gudgeon pin circlip | 2 | All |
27 | 15544/STD | Piston, B40 7:1, standard | 1 | 1961-64 |
27 | 15544/20 | Piston B40 7:1 +20 | 1 | 1961-64 |
27 | 15544/40 | Piston B40 7:1 +40 | 1 | 1961-64 |
27 | 15544/60 | Piston B40 7:1 +60 | 1 | 1961-64 |
27 | 41-0250 | Piston B40 8:1 Standard | 1 | 1961-64 |
27 | 41-0252 | Piston B40 8:1 +20 | 1 | 1961-64 |
27 | 41-0254 | Piston B40 8:1 +40 | 1 | 1961-64 |
27 | 41-0250/60 | Piston B40 8:1 +60 | 1 | 1961-64 |
27 | 17791/STD | Piston, B44 standard | 1 | 1965-70 |
27 | 17791/20 | Piston, B44 +20 | 1 | 1965-70 |
27 | 17791/40 | Piston, B44 +40 | 1 | 1965-70 |
27 | 17791/60 | Piston, B44 +60 | 1 | 1965-70 |
28 | R15490/STD | Ring set B40 Cords type standard | 1 | 1961-64 |
28 | R15490/20 | Ring set B40 Cords type +20 | 1 | 1961-64 |
28 | R15490/40 | Ring set B40 Cords type +40 | 1 | 1961-64 |
28 | R15490/60 | Ring set B40 Cords type +60 | 1 | 1961-64 |
29 | 41-0018 | Head gasket | 1 | 1961-64 |
29 | 41-0066 | Head gasket | 1 | 1965 |
29 | 41-0638 | Head gasket 6 stud | 1 | WD Models |
30 | 68-0155 | Tappet adjuster | 2 | All |
31 | 40-0158 | Rocker thrust washer | 2 | All |
32 | 40-0292 | Rocker arm inlet | 1 | All |
33 | 40-0296 | Rocker arm, exhaust | 1 | All |
34 | 40-0158 | Rocker thrust washer | 2 | All |
35 | 40-0148 | Rocker shaft ‘O’ ring | 2 | All |
36 | 24-0563 | Locknut | 2 | All |
37 | 66-0102 | Spark Plug washer | 1 | All |
38 | B7ES | Spark plug | 1 | All |
39 | ELE-20 | Plug cap, black, NGK | 1 | All |
40 | 65-0214 | HT Lead, sold by the inch. | 1 | All |
41 | 40-0294 | Rocker spindle | 2 | All |
42 | 40-0156 | Rocker spring | 2 | All |
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