Troubleshooting - Sym PA12B Service Manual

9. Crankshaft / Crankcase / Transmission / Kick Starter

Troubleshooting

Excessive engine noise
Worn connecting rod big end
Worn crankshaft bearing
Worn piston pin or piston pin hole
Hard to shift gear
Bent shift fork
Bent shift fork shaft
Bent shift fork claw
Transmission jumps out of gear
Worn gear teeth
Bent or damaged shift fork
Bent shift fork shaft
Excessive gear noise
Worn gear teeth
Worn gear shaft
9-4
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