2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 145Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 145

Measuring Piston Skirt Cylinder Clearance 1Measure the cylinder front to back in six places 726-306A ! CAUTION Incorrect
1Using non-metallic carbon removal tool, remove any carbon buildup from the combustion chamber being careful not to nick,
scrape, or damage the combustion chamber or the sealing surface2Inspect the spark plug hole for any damaged threadsRepair
damaged threads using "heli-coil" insert3Place 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 ATV-1085B 2Install the compression rings (1
and 2) so the letter on the top surface of each ring faces the dome of the pistonRotate the rings until the ring end gaps
are on directly opposite sides of the piston according to the illustrationNOTE: The chrome (silver) ring should be installed