1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 308Get this manual
ENGINES Magnum Engine DisassemblyInspection 3Measure piston pin boreMeasure piston pin 0.0Replace piston andor piston pin if out of toleranceMeasure connecting rod small end 10Measure 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