2007 Arctic Cat Prowler/Prowler XT ATVs Service Manual, Page 48Get this manual
Measuring Rocker Arm (Inside Diameter) 1Using dial calipers, measure the inside diameter of the rocker arm2Acceptable inside
Piston 1Using non-metallic carbon removal tool, remove any carbon buildup from the dome of the piston2Inspect the piston
for cracks in the piston pin, dome, and skirt areas3Inspect the piston for seizure marks or scuffingRepair with #400 grit
wet-or-dry sandpaper and water or honing oilCC144D 2Insert each valve into its original location3Install the valve springs
with the painted end of the spring facing away from the cylinder headNOTE: If the paint is not visible, install the ends
of the springs with the closest wound coils toward the head NOTE: If scuffing or seizure marks are too deep to correct with
the sandpaper, replace the piston 4Inspect the perimeter of each piston for signs of excessive "blowby Excessive "blowby"