2006 Arctic Cat ATVs factory service and repair manual, Page 201Get this manual

2006 Arctic Cat ATVs factory service and repair manual, Page 201

# Compression I Ring End Gap #2 Compression Ring End Gap and Oil Ring Expander End Gap ATV-I 0851 Measuring Piston Skirt
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 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 On the 650 HI,
the ring with the orientation mark (MTOP) should be installed in the second (middle) groove and the ring with the orientation