2001-2003 Honda TRX500FA Factory Service Manual, Page 154Get this manual
CYLINDERPISTON Check the top of the cy linder for warpage with a
straight edge and fee ler gauge across the studs and
bol holes as shownSERVICE LIMIT: 0.10 mm 10.004 in )
PISTON PISTON RING Inspect he piston rings for movement by rotating the ringsThe rings should be able to move in their grooves without catching Push the ring un til the outer surface of the piston ring is nearly lush with the piston and measure the ringto- ring groove clearanceSERVICE LIMITS: Top Sec ond: 0.09 mm (0.004 in )