CHAPTER 3B ENGINE 50cc/80cc ATV SERVICE MANUAL07.0
CHAPTER 3B ENGINE PAGE 3B - 37 -
Trouble shooting
The scooter doesn’t run after the engine starting
·The transmission gear failed
·The driving belt worn or broken
·The clutch failed
Developing abnormal noise when it runs
·The gear worn or burnt, or damaged on teeth
·The bearing worn and getting loose
Oil leakage
·Too much oil
·The oil seal broken
3.5.2 Dismantling the final transmission
assembly
Remove the left crankcase cover
Remove the driven pulley of the clutch
Drain the oil out of the final transmission.
Remove the bolts of the final transmission gearbox.
Remove the transmission gearbox cover.
Remove the gasket and locating pin.
3.5.3 Detach the final transmission
gearbox cover
Checking the final transmission assembly.
Check if countershaft gear is worn or damaged.
Check if the final transmission gear is burn or
damaged.
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