Disassembling the gearbox shafts
Important
Take care not to invert the shim position upon reassembly: this would potentially lead to jamming when
using the gear selector control, making it necessary to reopen the crankcase.
Disassembling the gearbox secondary shaft
Remove the chain-side washer (11) and the clutch shim washer (12) from the secondary shaft.
Withdraw the first speed driven gear (13) with the roller cage (14) and the shim (15).