2008 Arctic Cat ATVs factory service and repair manual, Page 169Get this manual
3Place the cylinder 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 conjunction with the wet-or-dry sandpaper or dam-
A CAUTION
Incorrect installation of the piston rings will result in engine damageMeasuring Cylinder Head Distortion
CYLINDERICYLINDER HEAD ASSEMBLY
iNOTE: If the cylinderlcylinder head assembly
cannot be trued, they must be replaced
1Remove any carbon buildup in the combustion chamber2Lay straightedge across the cylinder head; then using feeler gauge, check the distortion factor between the head and the straightedge