2007 Arctic Cat ATVs factory service and repair manual, Page 188Get 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 grooveNOTE: If the existing rings will not be replaced with new ones, note the location of each ring for proper installationWhen installing new rings, install as complete set only
1Measure the ist ton in outside diameter at each end and in {he cerkerIf measurement is not within specifications, the piston pin must be replaced
Cleaningllnspecting 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