2009 Arctic Cat 150 ATV Service Manual, Page 30Get 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
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 illustration
Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper or damage to the sealing surface may result
Inspecting Cam Chain Guide 1Inspect cam chain guide for cuts, tears, breaks, or chips2If the chain guide is damaged, it must be replacedHoning Cylinder 1Using slide gauge and dial indicator or snap gauge, measure the cylinder bore diameter in three locations from top to bottom and again from top to bottom at 90 from the first measurements for total of six measurementsThe trueness (out-of-roundness) is the difference between the highest and lowest readingMaximum trueness (out-of-roundness) must not exceed specifications