2000-2003 Honda TRX350 Rancher factory service manual, Page 128Get this manual
CYLINDERPISTON PISTONPISTON RING Inspect the piston rings for movement by rotating the ringsThe rings should be able to move in their grooves without catchingPush the ring until the outer surface of the piston ring is nearly flush with the piston and measure the ring-to-ring groove clearanceSERVICE LIMITS: TopSecond: 0.09 mm (0.004 in)
Insert each piston ring into the bottom of the cylinder squarely using the pistonMeasure the ring end gapSERVICE LIMITS: Top: 0.5 mm (0.02 in) Second: 0.6 mm (0.02 in) Oil (side rail): 0.9 mm (0.04 in)
PISTON RING