2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 208Get this manual
CRANKCASE CRANKCASE STARTER MOTOR, TIMING CHAIN AND OIL FILTER
Job namePart name Remove the starter motor, timing chain and oil filter Engine assembly Cylinder head Cylinder and piston Recoil starter and CDI rotor Primary and secondary sheaves Clutch carrier assembly Timing chain guide Timing chain Starter motorO-ring