28
ST SERIES
ENGINE DISASSEMBLING
• To withdraw the gearbox, you must remove all
the components ( shifting drum, primary and
secondary shafts ) in one batch. If needed,
slightly hit the shafts with a rubber mallet.
•
Once the gearbox is removed you can separate the
shifting drum from the shafts.
• ❱❘ Disassemble the selector
fork- drum assembly
• Using a suitable tool, unlock the pin retaining
clip
1
.
• Once the retaining clip is unlocked, remove
it using a pair of pliers.
•
• Rotate the fork until you find the pins slots
on the drum.
CAUTION
Take care about the gearbox shafts’s
trust shims. They may stick in the
crankcase.
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