2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 234Get this manual

2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 234

MIDDLE GEAR

CHECKING THE PINION GEAR 1.Check Gear teeth (drive pinion gear) Gear teeth (driven pinion gear) Pittinggallingwear Replace2.Check O-ring Damage ReplaceBearings Pittingdamage Replace3.Check: U-joint movement Roughness Replace U-joint
MIDDLE DRIVE AND DRIVEN GEAR SHIM SELECTION When the drive and driven gear, bearing housing assembly andor crankcase replaced, be sure to adjust the gear shim and 21.Select: Middle drive gear shim Middle driven gear shim Selection steps: Position middle drive and driven gear by using shims and with their respective thickness calculated from information marked on crankcase, bearing housing and drive gear end1 Shim thickness "A" Shim thickness "B"

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