2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 314Get this manual

2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 314

NOTE: If the existing rings will not be replaced with new ones, note the location of each ring for proper installationWhen
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
out-of-round cylinderRemoving Piston Rings 1Starting with the top ring, slide one end of the ring out of the ring-grooveFI327
Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore 1Measure the piston pin outside diameter at each end and in the