2005 Arctic Cat ATVs factory service and repair manual, Page 88Get this manual

2005 Arctic Cat ATVs factory service and repair manual, Page 88

Cleaningllnspecting Piston Rings 1Take an old piston ring and snap it into two pieces; then grind the end of the old ring
the cylinder front to back in six places Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore 1Measure the piston
pin outside diameter at each end and in the centerIf measurement is not within specifications, the piston pin must be replaced
2Measure the corresponding piston diameter at point 18 mm (0.71 in above the piston skirt at right angle to the piston-pin
boreSubtract this measurement from the measurement in step 1The difference (clearance) must not exceed specificationsInstalling
Piston Rings 1Install ring expander (4) in the bottom groove of the piston; then install the thin oil rings (3) over the
expander making sure the expander ends do not overlapStagger the end gaps of the upper and lower thin oil rings according
to the illustration I NOTE: Note the direction of the exhaust side of the piston (5) for correct ring end gap orientation