2004 Arctic Cat ATVs factory service and repair manual, Page 73Get this manual

2004 Arctic Cat ATVs factory service and repair manual, Page 73

Cleaningllnspecting Piston Rings 1Take an old piston ring and snap it into two pieces; then grind the end of the old ring
in six places 2Using feeler gauge, measure each piston-ring end gapAcceptable ring end gap must be within specifications
Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore 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 1.The
difference (clearance) must not exceed specificationsInstalling Piston Rings 1Install thin oil ring (3), ring expander (4),
and thin oil ring (3) in the bottom groove of the pistonStagger the end gaps of the upper and lower thin oil rings according
to the illustrationI NOTE: Note the direction of the exhaust side of the piston (5) for correct ring end gap orientation