The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 57-4210 Chain guide covering x 1
2. 14-1201 Nut, chaincase front mounting (1/4″ unified fine) x 1
3. 60-2329 Washer, chaincase front mounting (1/4″ x9/16″ x .036″) x 1
4. 57-4148 Chaincase outer cover x 1 ..
5. 60-2408 Screw, petrol tank mounting x 3
6. 83-1711 Nut, petrol tank mounting x 3
7. 24-8504 Washer, petrol tap x 1
8. 14-0104 Bolt, chaincase front mounting (1/4″ unified fine x 7/8″) x 1
9. 42-8010 Grommet, chaincase x 1
10. 83-1844 Petrol pipe x 1
11. 60-2338 Washer, silencer mounting (1/4″ x 5/8″ x .056″) x 2
12. 14-1201 Nut, silencer mounting (1/4″ unified fine) x 2
13. 57-4143 Chaincase inner cover x 1
14. 60-2427 Lockwasher, chaincase mounting (1/4″ x .465″ x .064″) x 1
15. 14-0101 Screw, chaincase mounting (1/4″ unified fine x 1/2″) x 1
16. 71-1384 Exhaust system complete x 1
17. 14-0102 Bolt, silencer mounting (1/4″ unified fine x 5/8″) x 1
18. 71-1889 Silencer bracket x 1
19. 67-8060 Domed nut, petrol pipe x 1
20. 02-0930 Washer, petrol pipe banjo x 1
21. 42-8073 Petrol pipe banjo x 1
22. 02-0100 Washer, petrol pipe banjo x1
23. 42-8075 Petrol taps x 1
24. 83-1383 Petrol tank x 1
25. 54-8005 “0” ring, filler cap x 2
26. 54-8039 Filler cap complete x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 83-1710 Rotolock complete x 4
2. 97-1385 Screw, cable cover x 4
3. 83-1290 Cable cover x 1
4. 83-1256 Front apron x 1
5. 83-1732 Support plate, apron/legshield x 1
6. 14-1201 Locknut, apron/legshield (1/4″ unified fine) x 4
7. 60-2320 Washer, apron/legshield (1/4″ x 14″ x .056″) x 4
8. 83-1811 Screw apron to shield x 6
9. 97-3978 Front mudguard x 1
10. 83-1731 Support plate, front mudguard x 1
11. 60-2417 Lockwasher, front mudguard (1/4″ x .425″ x .072″) x 1
12. 14-0102 Bolt, front mudguard (1/4″ unified fine x 5/8″) x 1
13. 83-1843 Clip, steady rod x 1
14. 83-1271 Legshield x 1
15. 83-1812 Screw, legshield (No. 6 self-tapping) x 6
16. 83-1747 Steady rod x 1
17. 83-1748 Rubber sleeve, steady rod x 1
18. 83-1738 Rear carrier complete x 1
19. 83-1708 Hinge pin, rear carrier x 2
20. 83-1683 Washer, hinge pin x 2
21. 83-1712 “Spirefix” hinge pin x 2
22. 14-1202 Nut, carrier mounting (5/16″ unified fine) x 2
23. 83-1900 Location plate, carrier x 2
24. 60-3105 Cable clip x 3
25. 83-1727 Rubber buffer, carrier x 2
26. 83-1845 Rear cover complete x 1
27. 83-1266 Side cover (left-hand) x 1
28. 83-1728 Platform complete x 1
29. 60-2463 Rivet, side cover x 20
30. 82-2351 Washer, side cover rivet x 14
31. 83-1265 Side cover (right-hand) x 1
32. 83-2875 Backing strip, side cover x 2
33. 14-1301 Nut, licence holder (A” unified fine) x 1
34. 60-2320 Washer, licence holder (1/4″ x 9/16″ x .056″) x 1
35. 14-0101 Bolt, licence holder ( 1/4″ unified fine x 1/2″) x 1
36. 42-9273 Licence holder x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 19-1047 Rear lamp complete x 1
19-1050 Rear lamp bulb x 1
2. 19-1327 Main wiring harness x 1
3. 19-1325 Switch/horn button with lead x 1
4. 19-1046 Headlamp complete x 1
19-1049 Headlamp bulb x 1
5. 19-1048 Headlamp lead x 1
6. 14-0103 Headlamp bolt (1/4″ unified fine x 3/4″) x 1
7. 19-1326 Horn lead x 1
8 19-2078 Horn (for use with legshields) x 1
8. 19-2079 Horn (for use without legshields) x 1
9. 54-5036 Horn mounting screw x 2
10. 60-2329 Headlamp mounting washer (1/4″ x 9/16″ x .036 ” ) x 1
11. 14-0701 Headlamp mounting nut (1/4″ unified fine) x 1
12. 19-9953 Banjo bolt x 1
13. 19-9951 Petrol pipe banjox 1
14. 19-9950 Screw, float chamber cover x 2
15. 19-9949 Float chamber cover x 1
16. 19-9948 Cover gasket x 1
17. 19-9947 Carburetter float x 1
18. 19-9926 Carburetter complete x 1
19. 19-9954 Carburetter choke valve x 1
20. 19-9945 Air intake silencer tube x 1
21. 19-9955 Choke valve spring x 1
22. 19-9956 Choke valve screw x 1
23. 19-9944 Air intake silencer x 1
24. 19-9943 Rubber ring, air silencer x 1
25. 19-9942 Air filter x 1
26. 19-9946 Spring clip, air silencer x 1
27. 19-9957 Throttle stop screw x 1
28. 19-9958 Stop screw spring x 1
29. 19-9931 Carburetter main jet x 1
30. 19-9941 Jet holder x 1
31. 19-9959 Carburetter pinch bolt x 1
32. 19-9929 Throttle valve x 1
33. 19-9928 Throttle valve spring x 1
34. 19-9927 Mixing chamber cap x 1
35. 19-9952 Petrol filter x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 37-3644 Rear wheel x 2
2. 37-3640 Rear brake drum (left-hand) x 1
3. 37-3493 Brake shoe spring x 2
4. 37-3498 Brake shoe complete x 2
5. 97-1527 Trunnion silentbloc x 2
6. 83-1489 Trunnion distance piece x 1
7. 83-1694Trunnion complete x 1 ..
8. 14-0101 Bolt, bump stop mounting (1/4″ unified fine x 1/2″) X 1
9. 60-2417 Spring washer, bump stop mounting (1/4″ x .425″x .072″) x 1
10. 76-0101 Washer, bump stop mounting (.265″ x 1/4″ x .080″) x 1
11. 83-1722 Mounting block (left-hand) x 1
12. 83-1719 Locking clip, torsion bar adjuster x 2
13. 83-1699 Roll pin, mounting block (1/4″ x 7/8″) x 2
14. 83-1723 Mounting block (right-hand) x 1
15. 83-1713 Nylon bush, torsion bar x 2
16. 83-1704 Adjusting screw, torsion bar x 2
17. 83-1474 Support tube, mounting blocks x 1
18. 83-1714 Torsion bar (left-hand) x 1
19. 83-1715 Torsion bar (right-hand) x 1
20. 37-3678 Spindle complete (right-hand) x 1
21. 70-9313 Ballrace (right-hand outer) x 1
22. 60-2362 Steel ball (3/16″ diameter) x 1
23. 60-2324 Washer, hub nut (1/2″ x 1″ x .092″) x 2
24. 14-1205 Locknut, wheel hub (1/2″ unified fine) x 2
25. 37-3632 Hub cap x 2
26. 14-1202 Wheel nut (5/16″ unified fine) x 6
27. 60-2321 Washer, wheel mounting (5/16″ x 5/8″ x .072″) x 6
28. 21-2025 Stud, wheel mounting (5/16″ unified fine x 1″) x 6
29. 37-3642 Wheel hub (right-hand) x 1
30. 70-9311 Circlip, spindle ballrace x 1
31. 90-5525 Ballrace (right-hand inner) x 1
32. 83-1887 Dust cover, axle beam x 1
33. 14-1205 Locknut, chainwheel mounting (1/2″ unified fine) x 1
34. 57-4060 Recessed washer, chainwheel x 1
35. 19-8696 Final drive chain x 1
36. 57-4261 Felt washer, axle beam x 1
37. 37-3631 Oil seal, axle beam x 1
38. 57-4061 Bush, axle beam x 1
39. 14-1201 Nut, rear brake lever to cam (1/4″ unified fine) x 1
40. 54-9081 Washer, rear brake lever to cam (1/4″x 9/16″ x .078″) x 1
41. 19-8697 Pedal chain x 1
42. 57-3966 Freewheel (18 teeth) x 1
43. 57-4142 Chainwheel (46 teeth) x 1
44. 57-3847 “Spirefix” chain tensioner x 1
45. 57-3834 Pulley, chain tensioner x 1
46. 57-3963 Tensioner arm complete x 1
47. 14-6219 Bolt, tensioner bracket (5/16″ unified coarse x 1 1/2″) x 4
48. 60-2418 Washer, tensioner bracket (5/16″ x 1/2″ x .080″) x 4
49. 57-3960 Chain Tensioner bracket x 1
50. 57-3965 Spring, chain tensioner x 1
51. 83-1791 Rear clamp, torsion bar x 1
52. 83-1792 Mounting block, torsion bar x 1
53. 14-0206 Bolt, support channel (1/4″ unified fine x 1 3/4″) x 2
54. 14-6103 Set-screw, support channel (1/4 ” unified coarse x 3/4″) x 2
55. 60-2417 Lockwasher, support channel (1/4″ x .425″ x .072″) x 2
56. 83-1793 Support channel x 1
57. 14-6107 Adjuster screw, final drive chain (1/4″ unified coarse x 1 1/2″) x 1
58. 14-6401 Nut, adjuster screw (1/4 ” unified coarse) x 1
59. 57-4141 Freewheel boss x 1
60. 37-3626 Brake cam lever complete x 1
61. 37-3546 Brake cam spindle bush x 1
62. 57-4118 Drive shaft complete x 1
63. 70-9313 Bearing, drive shaft x 1
64. 70-9311 Circlip, drive shaft bearing x 1
65. 37-3637 Rear brake fulcrum pin x 1
66. 83-1849 Rear axle beam complete x 1
67. 37-3629 Rear brake cam complete x 1
68. 60-2417 Lockwasher, rear carrier x 2
69. 14-1201 Locknut, rear carrier (1/4″ unified fine) x 2
70. 83-1484 Circlip, trunnion x 1
71. 82-9939 Thrust washer. trunnion x 1
72. 83-1705 End washer, trunnion x 2
73. 83-1703 Bush, rear axle x 1
74. 83-1954 “0” ring, trunnion pivot x 1
75. 83-1946 Spacing washer, trunnion pivot x 1
76. 83-1947 Felt washer, trunnion pivot x 1
77. 83-1945 Sealing washer, trunnion pivot x 1
78. 60-2417 Lockwasher, trunnion pivot (1/4″ x .425″ x .072″) x 1
79. 14-0101 Bolt, trunnion pivot (1/4″ unified fine x 1/2″) x 1
80. 21-2025 Stud, rear carrier mounting (5/16″ unified fine x 1″) x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 19-6510. Saddle x 1
2. 60-2467. Handlebar grip (left-hand) x 1
3. 60-2478. Brake lever (left-hand) x 1
4. 60-2518. Parking latch x 1
5. 60-2501. Control cable, rear brake x 1
6. 83-1707. Headlamp bracket x 1
7. 21-2041. Nut, Headlamp bracket(5/16″ unified fine) x 1
8. 60-2321. Washer, headlamp bracket (5/16″ x 5/8″ x .072″) x 1
9. 60-2458. Handlebar bend x 1
10. 60-2500. Control cable, front brake x 1
11. 60-2479. Brake lever (right-hand) x 1
12. 14-0219. Bolt, handlebar mounting (5/16″ unified fine x 1 1/2″) x 1
13. 60-2502. Throttle control cable x 1
14. 60-2469. Twist, decompressor control x 1
15. 60-2504. Decompressor control cable x 1
16. 60-2465. Top ballrace cup, steering head x 1
17. 83-1480. Top ballrace seating x 1
18. 83-1663. Frame complete x 1
19. 83-2723. Mounting plate x 1
20. 60-2417. Lockwasher, mounting plate screw (1/4″ x .425″ x .072″) x 4
21. 14-0603. Screw, mounting plate ( 1/4″ unified fine x 3/8″) x 4
22. 97-3837. Lower ballrace cup, steering head x 1
23. 83-1724. Nut, torsion bar cover x 2
24. 83-1702. Front cover, torsion bar mounting x 2
25. 60-2464. Cover screw x 2
26. 14-0618. Screw, torsion bar mounting block (5/16″ unified fine x 5/8″) x 2
27. 57-3845. Pedal crank (right-hand) x 1
28. 57-4065. Pedal (right-hand) x 1
29. 57-4093. Crank cotter, nut, and washer complete x 3
30. 57-4124. Axle, cranks and chainwheel x 1
31. 83-1672. Axle bush x 2
32. 14-1203. Locknut, trunnion mounting stud (3/8″ unified fine) x 2
33. 21-1959. Stud, trunnion mounting (3/8″ unified fine x 4-13/16″) x 1
34. 83-1711. Nut, bump stop housing x 2
35. 83-1700. Bump stop housing x 1
36. 83-1488. Bump stop x 1
37. 60-2408. Screw, bump stop housing x 2
38. 57-3846. Chainwheel x 1
39. 83-1711. Nut, frame cover x 4
40. 19-8697. Pedal chain x 1
41. 57-3844. Pedal crank (left-hand) x 1
42. 57-4064. Pedal (left-hand) x 1
43. 14-0302. Nut, saddle pillar clamp (5/16″ unified fine) x 1
44. 60-2418. Lockwasher, saddle pillar clamp (5/16″ x 1/2″ x .080″) x 1
45. 83-1706. Saddle pillar x 1
46. 14-0220. Bolt, saddle pillar clamp (5/16″ unified fine x 1 3/4″) x 1
47. 83-1836. Frame cover complete x 1
48. 60-2397. Screw, frame cover x 4
49. 60-2555. Steering stem complete x 1
50. 60-2503. Choke control cable x 1
51. 60-2468. Carburetter choke control trigger x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 71-2088 Exhaust pipe stud x 2
2. 71-1414 Exhaust pipe flange washer x 1
3. 60-2338 Washer, exhaust pipe mounting (1/4″ x 5/8″ x . 056″) x 2
4. 14-1201 Nut, exhaust pipe mounting (1/4″ unified fine) x 2
5. 19-9871 Cylinder barrel x 1
6. 19-9891 Sealing washer, decompressor x 1
7. 19-9890 Decompressor complete x 1
8. 19-7633 Spark plug (Champion L81) x 1
9. 19-9896 Spark plug, cover x 1
10. 19-9876 Nut, cylinder head stud (6 mm.) x 4
11. 19-9875 Spring washer, cylinder head stud (6 mm.) x 4
12. 19-9874 Washer, cylinder head stud (12 x 6’x 1.5 mm.) x 4
13. 19-9872 Cylinder head x 1
14. 19-9887 Flywheel nut (10 x 1 mm.) x 1
15. 19-9886 Lockwasher, flywheel nut (10 mm.) x 1
16. 19-9885 Washer, flywheel nut (18 x 10 x 1.5 mm.) x1
17. 19-9892 Flywheel magneto complete x 1
17. 19-9893 Magneto flywheel only x 1
18. 19-9897 Screw, coil mounting (22 x 4 mm.) x 4
19. 19-9884 Flywheel key x 1
20. 19-9903 Screw set, contact breaker x 1
21. 19-9902 Contact set x 1
22. 19-9899 Washer, coil mounting (4 mm)x 4
23. 19-9895 High-tension lead x 1
24. 19-9898 Cover, high-tension lead x 1
25. 19-9900 High-tension coil x 1
26. 19-9863 Crankcase screw (45 x 5 mm.) x 6
27. 19-9850 Crankcase x 1
28. 19-9862 Cylinder stud x 4
29. 19-9861 Grommet, high-tension lead x 1
30. 19-9860 Grommet, lighting lead x 1
31. 19-9879 Circlip, gudgeon pin x 1
32. 19-9878 Gudgeon pin x 1
33. 19-9881 Bearing, connecting rod small-end x 1
34. 19-9867 Crankcase dowel x 2
35. 19-9877 Piston complete (standard) x 1
35. 19-9975 Piston complete (first oversize 0.25 mm.) x 1
35. 19-9976 Piston complete (second oversize 0.50 mm ) x 1
36. 19-9880 Piston ring (standard) x 2
36. 19-9977 Piston ring (first oversize 0.25 mm.) x 2
36. 19-9978 Piston ring (second oversize 0.50 mm ) x 2
37. 19-9873 Cylinder base gasket x 1
38. 19-9850 Crankcase x 1
39. 19-9856 Circlip, crankcase x 1
40. 19-9857 Oil seal x 1
41. 19-9884 Key, clutch spring housing x 1
42. 19-9961* Clutch spring housing x 1
* Now comprises two parts:
*19-9961 Dish For Clutch spring
*19-9979 Hub for clutch spring dish

43. 19-9970 Clutch spring with balls x 1
44. 19-9962 Clutch hub x 1
45. 19-9889 Lockwasher, clutch nut x 1
46. 19-9888 Clutch nut (15 x 1 mm.) x 1
47. 19-9968 Circlip, pulley and fan (13 x 1 mm.) x 1
48. 19-9966 Spacing washer (0 3 mm.) as reqd.
48. 19-9967 Spacing washer (0.5 mm.) as regd.
49. 19-9960 Pulley and fan complete with bearing x 1
50. 19-9914 Bolt, layshaft housing mounting plate (6 mm.) x 4
51. 19-9974 Pulley bearing (Torrington RGB.08-1214) x 1
52. 19-9965 Facing washer x 2
53. 19-9913 Mounting plate, layshaft housing x 1
54. 19-9855 Mounting plate washer x 4
55. 19-9870 Mounting plate nut (6 mm.) x 4
56. 19-9882 Crankshaft complete x 1
57. 19-9883 Ball bearing (42 x 15 x 13 mm.) x 2
58. 19-9851 Crankcase gasket x 1
59. 19-9866 Gasket, induction pipe to membrane x 1
60. 19-9853 Inlet membrane complete x 1
61. 19-9852 Gasket, membrane to crankcase x1
62. 19-9854 Induction pipe x 1
63. 19-9864 Oil seal x 1
64. 19-9894 Stator plate complete x 1
65. 19-9905 Lighting coil x 1
66. 19-9906 Oil wick for cam x 1
67. 19-9907 Condenser x 1
68. 19-9899 Washer, stator plate screw (4 mm.) x 3
69. 19-9901 Screw, stator plate (15 x 4 mm.) x 3
70. 19-9945 Air intake tubing (110 x 16 x 21 mm.) x 1
71. 19-9865 Magneto cover spring clip x 2
72. 19-9858 Magneto cover x 1
73. 19-8696 Final drive chain x 1
74. 60-2324 Washer, layshaft nut (1/2″ x 1″x 092″) x 1
75. 70-9313 Ballrace, layshaft housing x 2
76. 14-0225 Bolt, layshaft housing (5/16″ unified fine x 3″) x 2
77. 19-9926 Carburetter complete x 1
78. 19-9870 Nut, induction pipe mounting (6 mm.) x 2
79. 19-9869 Stud, induction pipe mounting (18 x 6 mm.) x 2
80. 19-9855 Undulated washer, induction pipe x 2
81. 14-0401 Locknut (1/4″ unified fine) x 1
82. 21-2046 Sleeve nut (1/4″ unified fine) x 1
83. 19-9972 Clutch plate x 2
84. 19-9973 Clutch friction plate x 1
85. 19-9964 Pressure spring x 1
86. 19-9963 Locking plate x 1
87. 19-9969 Screw, locking plate (18 x 5 mm.) x6
88. 60-2511 Circlip, sliding member x 1
89. 57-4123 Spring, sliding member x 1
90. 57-4105 Sliding members x 1
91. 60-2510 Circlip, layshaft x 1
92. 57-4138 Blind bush, layshaft x 1
93. 14-1202 Nut, layshaft housing (5/16″ unified fine) x 2
94. 57-4122 Support washer, layshaft x 1
95. 57-4137 Layshaft pulley (49 teeth) x 1
96. 57-4108 Thrust washer, layshaft x 1
97. 57-4140 Primary belt x 1
98. 57-4132 Layshaft housing assembly x 1
99. 57-4181 Layshaft x 1
100. 37-3544 Felt washer, layshaft x 2
101. 57-4259 Grease retainer, layshaft x 2
102. 57-4136 Layshaft sprocket (12 teeth) x 1
103. 14-1205 Sprocket nut, layshaft (1.2″ unified fine) x 1

The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.

1. 37-3493. Brake shoe spring x2
2. 37-3498. Brake shoe complete x 2
3. 37-3543. Retaining cup, felt washer x 1
4. 37-3544. Felt washer x 1
5. 37-3545. Needle roller bearing (inner) x 1
6. 37-3646. Brake drum assembly x 1
7. 90-6063. Ball bearing (outer) x 1
8. 54-5005. Washer, spindle nut x 1
9. 57-3632. Hub cap x 1
10. 37-3644. Front wheel x 1
11. 14-1202. Nut, wheel mounting (5/16″ unified fine) x 3
12. 60-2321. Washer, wheel mounting (5/16″ x 5/8″ x .072″) x 3
13. 14-1205. Nut, hub to spindle (1/2″ unified fine) x 1
14. 37-3497. Circlip, front hub x 1
15. 21-2025. Stud, wheel mounting (5/16″ unified fine x 1″) x 3
16. 37-3629. Brake cam complete x 1
17. 97-3724. Bush, front suspension x 2
18. 97-3960. Spacing washer .032″ (0.812 mm.) as reqd.
18. 97-3961. Spacing washer .036″ (0.914 mm.) as regd.
18. 97-3962. Spacing washer .040″ (1.016 mm.) as reqd.
19. 97-3939. Pivot arm complete x 1
20. 37-3546. Cam spindle bush x 1
21. 37-3626. Brake cam lever x 1
22. 54-9081. Washer, brake lever (1/4″ x 9/16″ x .078″) x 1
23. 14-1201. Nut, lever (1/4″ unified fine) x 1
24. 60-2419. Lock- washer for bolt, line 25 (3/8″ x .590″ x .092″) x 1
25. 14-0128. Bolt, bump buffer (3/8″ unified fine x 1″) x 1
26. 97-3731. Washer, bump buffer x 1
27. 97-3730. Bump buffer x 1
28. 97-3729. Rebound buffer x 1
29. 97-3727. Cup, bump buffer x 1
30. 97-3852. Eye bolt complete x 1
31. 97-3724. Bush, eye bolt x 1
32. 54-5005. Washer, pivot arm x 1
33. 14-1205. Nut, pivot arm (1/2″ unified fine) x 1
34. 97-3944. Fork leg complete x 1
35. 97-3836. Lower cone, steering head x 1
36. 60-2362. Steel ball (3/16′) x 26
37. 60-2360. Steel ball (1/8″) x 30
38. 60-2466. Screwed race, steering head x 1
39. 97-3869. Locknut, steering head x 1