2011 Arctic Cat 366SE ATV Service Manual, Page 30Get this manual
CleaningInspecting Valve Cover NOTE: If the valve cover cannot be trued, the cylinder head assembly must be replaced
2Remove the valve seal and the lower remaining spring seatDiscard the valve seal
1Wash the valve cover in parts-cleaning solvent2Place the valve cover on the Surface Plate covered with #400 grit wet-or-dry sandpaperUsing light pressure, move the valve cover 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 valve cover in figure eight motion until uniform bright metallic finish is attained
CAUTION
Do not remove an excessive amount of the sealing surface or damage to the camshaft will resultAlways check camshaft clearance when resurfacing the valve coverCC134D
NOTE: The valve seals must be replacedCC130D
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