2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 316Get this manual
3Place the cylinder on the surface plate covered with #400 grit wet-or-dry sandpaperUsing light pressure, move the cylinder 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 in figure eight motion until uniform bright metallic finish is attained ! CAUTION
Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper or damage to the sealing surface may resultCC127D
2Wash the cylinder in parts-cleaning solvent3Inspect the cylinder for pitting, scoring, scuffing, and corrosionIf marks are found, replace the cylinder4If any measurement exceeds the limit, replace the cylinder and pistonMeasuring Camshaft Runout
NOTE: If the camshaft is out of tolerance, it must be replaced