1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 187Get this manual
cleaning the groovesIf you damage the grooves while cleaning, new piston must be installed
7Carefully remove all carbon buildup from the ring groovesInspect the piston for missing, broken or cracked ring landsInspect the grooves carefully for cleanliness and for absence of burrs or nicksRecondition or replace the piston if necessary8Check the side clearance of each ring in its groove by rolling the new ring around the piston in its groove as shown in Figure 66If the ring grooves show excessive wear, install new piston9Inspect the condition of the piston crownNormal carbon buildup can be removed with a