2001-2003 Honda TRX500FA Factory Service Manual, Page 305Get this manual
REAR DRIVING MECHAN ISM Set horizontal type di al indicator on the ring gear through th oil filler ho leTurn the ring ear back and orth it the axle to read
DIAL IND ICATOR
backlashSTAN DARD: .050.25 (0.0020.010 in) SERVICE LIMIT: 0.4 mm 10.02 in) Remove the ial indicatorTurn he ring ge ar 120 and measure backla shRepeat th is procedure once ore Compare the ifference of the three measurementsSERVICE UMIT: .2 mm (0 ,01 in) If he ifference in measurements exceeds the serv ice limit, it indicates that the bearing is not insta lled squ arely, th case is def ormedInspect th beari ngs and caseIf the backlash is excessiv ereplace th ring gear righ sh im ith thinner oneIf he backlash is oo small, repla ce he ring gear right shim ith thicker one Backlash is changed by about 0.06 mm (0.002 inhen thickness of the shim is changed by 0.12 mm 10.005 in )NOTE: Nine di ff ere nt thickness shi ms (from to I) are ava ilable in hickness int erval of 0.06 mm 10.002 in )RING GEAR SHIMS: (t innest): 1.82 mm (0.072 in) (st and ard)2.00 (0.079 in (t hickest): 2.30 mm (0.09 n)