Final Gear Disassembly - Yamaha XZ550RJ 1982 Service Manual

6. If the gear lash exceeds the specified limits,
adjust as follows:
•
To reduce gear lash, increase the ring gear
shim.
•
To increase gear lash, reduce the ring gear
shim.
•
If it is necessary to increase the ring gear
shim by more than 0.1mm (0.004 in), re-
duce the thrust washer thickness by 0.1mm
(0.004 in) for each 0.1mm (0.004 in) of ring-
gear-shim increase. If it is necessary to re-
duce the shim by more than 0.1mm (0.004
in), reverse the above procedure.

Final gear disassembly

1. Remove the nuts and bolts holding the bear-
ing housing.
2. Remove the
thrust washer from the final gear case.
3. Remove the final-drive-shaft-bearing retainer
with the final-drive-shaft-bearing-retainer
wrench.
ring gear assembly
CAUTION:
The final-drive-shaft-bearing-retainer nut has
left-hand threads. Turn the retainer nut clock-
wise to loosen it.
4. Remove final drive shaft assembly from the
final gear case.
and
CAUTION:
Final drive shaft removal should be performed
only if the gearing or damper cam replacement
is necessary. Do not reuse the bearings or races
after removal.
5. Place the final drive shaft in a hydraulic
press with the damper compressor in place
as shown in the photograph.
139