CHAPTER 3B ENGINE 50cc/80cc ATV SERVICE MANUAL09.0
CHAPTER 3B ENGINE PAGE 3B - 37 -
Designated oil: SEA 15W/40SE
Filling 0.12L
Changing 0.1L
Tool
Special tool
Bearing pulling set 12mm
Bearing pulling set 15mm
Sleeve shaft for assembling the crankshaft
Sleeve lever for assembling the crankshaft
Common tool
Bearing outer race driver 3740mm
Bearing outer race drive 3235mm
Guide lever for the bearing driver 17mm
Guide lever for the bearing driver 15mm
Guide lever for the bearing driver 12mm
Bearing driver
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.
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