Crank Case / Crank Shaft - HER CHEE ATV-50 II Service Manual

Crank Case / Crank Shaft

Attention of Operation
This chapter explain the necessary procedure of disassembling crank case due to
repair & maintain the crank shaft.
Before disassembling of crank case , must operation with sequence of each
chapter to disassembly.
–Disassembly of oil pump
–Disassembly of carburetor
–Disassembly of intake valve
–Dis-mounting of engine
–Disassembly of cylinder head and cylinder
–Disassembly of ACG
–Disassembly drive face ass'y
Must disassembly of final reduction mechanism when change the left crank case.
Must use special tool into the inner ring of crank shaft bearing , and pull in crank
shaft to assembly when assembly crank case & crank shaft , put new bearing into
crank case, and put into new oil seal after assembling crank case.
Diagnosis of Troubles
Noise of Engine
Damage of crankshaft bearing.
Damage of needle bearing of crankshaft pin.
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