Removing the gearbox assembly
Withdraw the selector fork shafts (1).
Move the forks (2) and (3) to disengage them from the slots in the selector drum.
Remove fork selector drum (4) paying attention not to invert the shims (5) and (6) fitted on the shaft.
Once removed, it is possible to replace block ring (7) and special needles (8).
Remove gear selector forks (2) and (3).
Remove the gearbox primary (9) and secondary (10) shafts complete with gears, taking care to recover the
shim washers on the ends of the shafts.
If the bearing inner rings are left on the shafts, slide them off the ends of the gearbox primary (9) and
secondary (10) shafts.