2008 Arctic Cat 400/500/650/700 ATV Service 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 ! CAUTION
ATV-1024A
Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper or damage to the sealing surface may result
ATV-1024B
! CAUTION
Incorrect installation of the piston rings will result in engine damage