2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 177Get this manual

2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 177

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CYLINDER AND PISTON

Piston skirt diameter "P": Standard

99.94599.995 mm (3.93483.9368 in)

out of specification, replace the piston and piston rings as set3rd ste