2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 216Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 216

Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore 1Measure the piston pin outside diameter at each end and in the
sharp edge2Using the sharpened ring as tool, clean carbon from the ring-groovesBe sure to position the ring with its tapered
side up 2Insert an inside dial indicator into the piston-pin boreThe diameter must be maximum 20.03 mm (0.789 inTake two
measurements to ensure accuracy CAUTION Improper cleaning of the ring-grooves by the use of the wrong type of ring-groove
cleaner will result in severe damage to the piston Measuring Piston-Ring End Gap (Installed) 1Place each piston ring in the
wear portion of the cylinderUse the piston to position each ring squarely in the cylinder2Using feeler gauge, measure each