Honda 2005-2008 RX500 FA Service Manual page 393

'61HN252' by American Honda Motor Co. - Page 393 of 540
[2005-2008] [TRX500 FA/FGA]
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Set a horizontal type dial indicator on the ring gear
through the oil filler hole.
Turn the ring gear back and forth with the axle to
read backlash.
STANDARD: 0.05--0.25 mm (0.002--0.010 in)
SERVICE LIMIT: 0.4 mm (0.02 in)
Remove the dial indicator. Turn the ring gear 120°
and measure backlash. Repeat this procedure once
more.
Compare the difference of the three measurements.
SERVICE LIMIT: 0.2 mm (0.01 in)
If the difference in measurements exceeds the ser-
vice limit, it indicates that the bearing is not
installed squarely, or the case is deformed.
Inspect the bearings and case.
If the backlash is excessive, replace the ring gear
right side shim with a thinner one.
If the backlash is too small, replace the ring gear
right side shim with a thicker one.
Backlash changed by about 0.06 mm (0.002 in)
when thickness of the shim is changed by 0.12 mm
(0.005 in).
Ring gear shims:
A: (thinnest): 1.82 mm (0.072 in)
D: (standard): 2.00 mm (0.079 in)
I: (thickest): 2.30 mm (0.091 in)
Change the left side shim as follows: If the right
shim was replaced with a 0.12 mm (0.005 in) thicker
shim, replace the left shim with one that is 0.12 mm
(0.005 in) thinner.
FINAL GEAR CASE DISASSEMBLY
Loosen the eight cover bolts in a crisscross pattern
in 2 or 3 steps and remove them.
Pry the cover at the prying points using a screw-
driver and remove the case cover.
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
REAR DRIVING MECHANISM
BOLTS
PRYING POINTS
DIAL INDICATOR
RING GEAR
RIGHT SHIM
LEFT SHIM
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3/9/2008 11:16 PM