2008 Arctic Cat 366 ATV Service Manual, Page 40Get this manual
2Place 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
AStarting with the top ring, slide one end of the ring out of the ring-grooveBRemove each ring by working it toward the dome of the piston while rotating it out of the groove
Do not remove an excessive amount of the sealing surface or damage to the camshaft will resultAlways check camshaft clearance when resurfacing the valve cover
AT THIS POINT
To service piston, see Servicing Top-Side Components sub-section
AT THIS POINT
To service center crankcase components only, proceed to Removing Left-Side ComponentsCC130D
Servicing Top-Side Components
NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement is necessary