2004 Arctic Cat ATVs factory service and repair manual, Page 334Get this manual

2004 Arctic Cat ATVs factory service and repair manual, Page 334

Measuring Piston Pin (Outside Diameter) and Piston-Pin Bore #1 Compression Ring End Gap 1Measure the piston pin outside diameter
the cylinder front to back in six places 2Measure the corresponding piston diameter at point 15 mm (0.6 in above the piston
skirt at right angle to the piston-pin boreSubtract this measurement from the measurement in step 1The difference (clearance)
must be within specificationsInstalling Piston Rings CleaningInspecting Cylinder Head The cylinder head studs must be removed
for this procedure 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 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