2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 271Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 271

#1 Compression Ring End Gap #3 Thin Oil Ring #3 Thin Oil Ring 3Place the cylinder head on the surface plate covered with
of each ring faces the dome of the pistonRotate the rings until the ring end gaps are on directly opposite sides of the piston
(see illustration) Measuring Cylinder Head Distortion 1Remove any carbon buildup in the combustion chamber726-306A CAUTION
2Lay straightedge across the cylinder head; then using feeler gauge, check the distortion factor between the head and the
straightedge3Maximum distortion is 0.05 mm (0.002 in Incorrect installation of the piston rings will result in engine damage
CYLINDERCYLINDER HEAD ASSEMBLY NOTE: If the cylindercylinder head assembly cannot be trued, they must be replaced CleaningInspecting
Cylinder Head CAUTION The cylinder head studs must be removed for this procedure 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