2008 Arctic Cat ATVs factory service and repair manual, Page 56Get this manual
Removing Piston Rings 1Starting with the top ring, slide one end of the ring out of the ring-groove Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore 2Remove each ring by working it toward the dome of the piston while rotating it out of the grooveHNOTE: If the existing rings will not be replaced with new onesl note the location of each ring for proper installationWhen installing new ringsl install as complete set only
1Measure the piston pin outside diameter at each end and in the centerIf measurement is not within specifications, the piston pin must be replaced
CleaningInspecting Piston Rings
1Take an old piston ring and snap it into two pieces; then grind the end of the old ring to 45' angle and to sharp edge2Using the sharpened ring as tool, clean carbon from the ring-groovesBe sure to position the ring with its tapered side up