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

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

CYLINDER AND PISTON

NOTE: Measure cylinder bore "C" in parallel to and at right angles to the cylinder matching surfaceThen, find the average of the measurementsStandard Cylinder bore "C" Wear limit

100.005100.100 mm 100.055 mm (3.9404 in) (3.93723.9392 in)X+Y 2

out of specification, rebore or replace the cylinder, and replace the piston and piston rings as set2nd step: Measure piston skirt diameter "P" with micrometerb 5.0 mm (0.20 in) from the piston bottom edge

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