Yamaha Wolverine YX70EPNG, Service Manual

Page: 371 / 503

REAR CONSTANT VELOCITY SHAFT ASSEMBLIES, FINAL
DRIVE ASSEMBLY AND REAR DRIVE SHAFT
8-30
• Final drive ring gear shim (ring gear bearing
housing side) “3”
• Final drive ring gear shim (final drive case
side) “4”
2. Adjust:
• Gear backlash
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Select a suitable shim(s) using the following
chart.
b. If increased by more than 0.2 mm (0.008 in):
Reduce the final drive ring gear shim (ring
gear bearing housing side) “3” thickness by
0.2 mm (0.008 in) for every 0.2 mm (0.008 in)
that the final drive ring gear shim (final drive
case side) “4” is increased.
c. If reduced by more than 0.2 mm (0.008 in):
Increase the final drive ring gear shim (ring
gear bearing housing side) “3” thickness by
0.2 mm (0.008 in) for every 0.2 mm (0.008 in)
that the final drive ring gear shim (final drive
case side) “4” is decreased.
TIP
Be sure to use one of each of the final drive ring
gear shim (ring gear bearing housing side) “3”
and final drive ring gear shim (final drive case
side) “4” to obtain the shim thickness.
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EBS30429
ASSEMBLING THE FINAL DRIVE
ASSEMBLY
1. Install:
• Final drive pinion gear assembly “1”
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a. Install the crankcase separating tool “2”.
b. Screw in the center bolt “3” of the crankcase
separating tool several turns to press the final
drive pinion gear assembly slightly into the fi-
nal drive case “4”.
TIP
Press the final drive pinion gear assembly until
the four final drive pinion gear assembly bolts
can be installed.
c. Tighten the final drive pinion gear bearing
housing bolts in stages using a crisscross
pattern until the final drive pinion gear assem-
bly is pressed completely into the final drive
case.
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2. Apply:
• Sealant
(onto the washer contact surface and splines
of the final drive pinion gear)
Thinner shim
Final gear backlash is in-
creased.
Thicker shim
Final gear backlash is de-
creased.
Final drive ring gear shims (ring
gear bearing housing side) “3”
Thickness (mm)
0.2 0.3
Final drive ring gear shims (final
drive case side) “4”
Thickness (mm)
0.2 0.3
4
2
2
3
1
Crankcase separating tool
90890-01135
Crankcase separator
YU-01135-B
T
R
.
.
Final drive pinion gear bearing
housing bolt
28 Nm (2.8 m·kgf, 20 ft·lbf)
LOCTITE®
Yamaha bond No. 1215
90890-85505
(Three bond No.1215®)
3
2
4
1