2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 112Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 112

PISTONROD INSPECTION, CONT4Measure piston ring to groove clearance by placing the ring in the ring land and measuring with thickness gaugeReplace piston and rings if ring-to-groove clearance exceeds service limits
Piston Ring

Piston Ring-to-Groove Clearance Top Ring Std: .0016-.0031" (.040-.080 mm) Limit: .0059" (15 mm) Second Ring Std: .0012-.0028" (.030-.070 mm) Limit: .0059" (15 mm) Feeler Gauge

PISTON RING INSTALLED GAP

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