Adjusting The Final Gear Backlash - Yamaha FJR13AY 2009 Service Manual

Final gear backlash
0.22–0.45 mm (0.0087–0.0177 in)
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a. Install the ring gear fix bolt (M14) "1", into the
final gear oil drain hole.
Ring gear fix bolt (M14)
90890-01524
YM-01524
b. Finger tighten the ring gear fix bolt (M14) until
it stops the ring gear from moving.
TIP
Do not overtighten the ring gear fix bolt (M14).
c. Install the final gear backlash band "2" and
dial gauge "3".
TIP
Make sure that the dial gauge plunger contacts
the groove "a" in the final gear backlash band as
shown in the illustration.
Final gear backlash band
90890-01511
Middle drive gear lash tool
YM-01230
d. Gently rotate the coupling gear from engage-
ment to engagement.
e. Record the reading on the dial gauge.
f. Remove the dial gauge, final gear backlash
band, and ring gear fix bolt (M14).
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4-107
g. Rotate the final drive pinion gear 90°.
h. Reinstall the ring gear fix bolt (M14), final
gear backlash band, and dial gauge.
i. Repeat steps (d) to (h) three more times (for
a total of four measurements).
j. If any of the readings are over specification,
adjust the final gear backlash.
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EAS23590

ADJUSTING THE FINAL GEAR BACKLASH

1. Remove:
• Ring gear bearing housing bolts "1"
• Ring gear bearing housing nuts "2"
TIP
Working in a crisscross pattern, loosen each bolt
and nut 1/4 of a turn. After all of the bolts and
nuts are fully loosened, remove them.
2. Remove:
• Ring gear bearing housing "1"
• Dust cover "2"
• Ring gear "3"
• Ring gear shim(s) "4"
• Thrust washer "5"
3. Adjust:
• Final gear backlash
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a. Select the suitable shim(s) and thrust washer
with the following chart.
Final gear backlash is in-
Thinner shim
creased.
Final gear backlash is de-
Thicker shim
creased.
SHAFT DRIVE
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