Yamaha YFM45FAR Service Manual page 284

REAR AXLE/FINAL DRIVE GEAR AND DRIVE SHAFT
Final gear lash adjustment
1.Remove:
Bearing housing 1
G
Ring gear shim(s) 2
G
Ring gear 3
G
Thrust washer 4
G
2.Adjust:
Gear lash
G
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Adjustment steps:
G
Select a
washer(s) using the following chart.
Too little gear lash
Too large gear lash
G
If increased by more than 0.2 mm (0.008 in):
Reduce the thrust washer thickness by
0.2 mm (0.008 in)
(0.008 in) of ring gear shim increase.
G
If reduced by more than 0.2 mm (0.008 in):
Increase the thrust washer thickness by
0.2 mm (0.008 in)
(0.008 in) that the ring gear shim is
decreased.
Ring gear shim
Thickness (mm)
Thrust washer
Thickness (mm)
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7 - 29
DRIV
suitable shim(s) and
Reduce shim
thickness.
Increase shim
thickness.
for every
for every
0.25 0.30
0.40 0.45
1.0 1.1
1.3 1.35
1.45 1.5
1.6 1.7
1.9 2.0
thrust
0.2 mm
0.2 mm
0.35
0.50
1.2
1.4
1.55
1.8
2.1