2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 111Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 111

PISTONROD INSPECTION
1Measure piston pin bore
Piston Pin Bore: .9055-.9057" (23.0-23.006 mm)

2Measure piston pin O.DReplace piston andor piston pin if out of tolerance
Piston Pin O.D.9053-.9055" (22.994-23.0 mm)