2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 167Get this manual

2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 167

ATV-1011A 4Place spring retainer over the valve springs; then using the valve spring compressor, compress the valve springs
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 piston2Inspect the piston for cracks in the piston pin, dome,
and skirt areas3Inspect the piston for seizure marks or scuffingRepair with #400 grit wet-or-dry sandpaper and water or honing
oilNOTE: If scuffing or seizure marks are too deep to correct with the sandpaper, replace the piston Measuring Piston-Ring
End Gap (Installed) 1Place each compression ring in the wear portion of the cylinderUse the piston to position each ring
squarely in the cylinder2Using feeler gauge, measure each piston-ring end gapAcceptable ring end gap must be within specifications
4Inspect the perimeter of each piston for signs of excessive "blowby Excessive "blowby" indicates worn piston rings or an