!
!

M20/21 EXHAUST GUIDE
66-0139
!

Length 83mm
Inner 11/32"
Outer 5/8"

M20/21 INLET GUIDE
66-0140
!

M20/21 VALVE COLLET
66-0222
!
bsam20klepspie

M20/21 IN VALVE
66-0235
!

M20/21 EXHAUST VALVE
66-0236
!

SMALL END BUSH M20/21
66-0491
!

THRUST WASHER
66-0629
!
M20 conrod thrust washer

TIMING SIDE SHAFT M20/21
66-0640
!
GENUINE BSA. New old stock.

DRIVE SIDE ENGINE SHAFT SPACER
66-0660
!

B31/33, M20/21 etc.

GUDGEON PIN M20/21/B33
66-0953
!
19MM X 72,8MM

INLET TAPPET B31-M20
66-1493
!

TAPPET GUIDE IN/EX
66-1494
!
B and M models.
GENUINE BSA New old stock.