Assembling The Final Gear Case - Yamaha 2004 YXR660 Service Manual

REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE
GEAR AND DRIVE SHAFT
Adjusting the final gear lash
1. Remove:
• ring gear bearing housing 1
• ring gear shim(s) 2
• ring gear 3
• thrust washer 4
2. Adjust:
• gear lash
M MMM M MMM M
a. Select a suitable shim(s) and thrust
washer(s) using the following chart.
Too little gear
lash
Too large
gear lash
b. If increased by more than 0.2 mm
(0.008 in):
Reduce the thrust washer thickness by
0.2 mm (0.008 in) for every 0.2 mm of ring
gear shim increase.
c. If reduced by more than 0.2 mm (0.008 in):
Increase the thrust washer thickness by
0.2 mm (0.008 in) for every 0.2 mm that the
ring gear shim is decreased.
Ring gear shim
Thickness (mm)
Thrust washer
Thickness (mm)
L LLL L LLL L

ASSEMBLING THE FINAL GEAR CASE

1. Adjust:
• final gear lash
Refer to "MEASURING AND ADJUSTING
THE FINAL GEAR LASH".
7 - 33
DRIV
M MMM M M MMM M M MMM M M MMM M
Reduce shim thickness.
Increase shim thickness.
0.25 0.30
0.40 0.45
1.0 1.1
1.3 1.4
1.6 1.7
1.9 2.0
L LLL L L LLL L L LLL L L LLL L
MMM
0.35
0.50
1.2
1.5
1.8
2.1
LLL