2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 147Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 147

2Measure the corresponding piston diameter at point 15 mm (0.6 in above the piston skirt at right angle to the piston-pin
head on the surface plate covered with #400 grit wet-or-dry sandpaperUsing light pressure, move the cylinder head in figure
eight motionInspect the sealing surface for any indication of high spotsA high spot can be noted by bright metallic finishCorrect
any high spots before assembly by continuing to move the cylinder head in figure eight motion until uniform bright metallic
finish is attained #1 Compression Ring End Gap #3 Thin #3 Thin Oil Ring Oil Ring End Gap End Gap it#2 Compression Ring End
Gap and Oil Ring Expander End Gap ATV-10858 CAUTION Water or parts-cleaning solvent must be used in conjunction with the
wet-or-dry sandpaper or damage to the sealing surface may result 2Install the compression rings (l and 2) so the letter on
the top surface of each ring faces the dome of the pistonRotate the rings until the ring end gaps are on directly opposite
sides of the piston (see illustration) Measuring Cylinder Head Distortion 726-306A 1Remove any carbon buildup in the combustion