2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 328Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 328

2Inspect the piston for cracks in the piston pin, dome, and skirt areas3Inspect the piston for seizure marks or scuffingRepair
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 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 PISTON ASSEMBLY NOTE:
Whenever piston, rings, or pin is out of tolerance, it must be replaced ! CAUTION Improper cleaning of the ring-grooves by
the use of the wrong type of ring-groove cleaner will result in severe damage to the piston CleaningInspecting Piston 1Using
non-metallic carbon removal tool, remove any carbon buildup from the dome of the piston Measuring Piston-Ring End Gap (Installed)