2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 79Get this manual

2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 79

ENGINE 3Remove top compression ringUsing piston ring pliers: Carefully expand ring and lift it off the pistonCAUTION: Do
of top and bottom steel rail and center expander sectionThe top rail has locating tab on the end which fits into notch (A)
in the upper oil ring land of the piston5Remove the top rail first followed by the bottom rail6Remove the expanderX Y 12
Up From Bottom 4Inspect cylinder for taper and out of round with telescoping gauge or dial bore gaugeMeasure in two different
directions, front to back and side to side, on three different levels (12 down from top, in the middle, and 12 up from bottom)5Record
measurementsIf cylinder is tapered or out of round beyond .002, the cylinder must be re-bored oversize, or replacedCylinder