2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 247Get this manual

2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 247

NOTE: If the existing rings will not be replaced with new ones, note the location of each ring for proper installationWhen
in the cylinder2Using feeler gauge, measure each piston-ring end gapAcceptable ring end gap must be within specificationsATV-1069
Measuring Piston Skirt Cylinder Clearance 1Measure the cylinder front to back in six places2Measure 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 specificationsCC280D Installing Piston Rings Measuring
Piston Pin (Outside Diameter) and Piston-Pin Bore 1Measure the piston pin outside diameter at each end and in the centerIf
measurement is not within specifications, the piston pin must be replaced 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