Removing The Transmission; Checking The Shift Forks; Checking The Shift Drum Assembly - Yamaha XSR MTM690 2016 Service Manual

EAS30430

REMOVING THE TRANSMISSION

1. Remove:
• Drive axle assembly "1"
• Shift drum retainer "2"
• Shift fork guide bars
• Shift fork "L" and "R"
• Shift drum assembly
• Shift fork "C"
2. Remove:
• Bearing retainer
• Main axle assembly bearing housing "1"
• Main axle assembly "2"
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a. Insert two bolts "3" of the proper size, as
shown in the illustration, into the main axle
assembly bearing housing.
b. Tighten the bolts until they contact the
crankcase surface.
c. Continue tightening the bolts until the main
axle assembly comes free from the cylinder.
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EAS30431

CHECKING THE SHIFT FORKS

The following procedure applies to all of the shift
forks.
1. Check:
• Shift fork cam follower "1"
• Shift fork pawl "2"
Bends/damage/scoring/wear → Replace the
shift fork.
1
2
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2
1
3
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2. Check:
• Shift fork guide bar
Roll the shift fork guide bar on a flat surface.
Bends → Replace.
EWA12840
WARNING
Do not attempt to straighten a bent shift fork
guide bar.
▼▼▼
3. Check:
• Shift fork movement
(along the shift fork guide bar)
Rough movement → Replace the shift forks
and shift fork guide bar as a set.
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EAS30432

CHECKING THE SHIFT DRUM ASSEMBLY

1. Check:
• Shift drum groove
Damage/scratches/wear → Replace the shift
drum assembly.
• Shift drum segment "1"
Damage/wear → Replace the shift drum as-
sembly.
• Shift drum bearing "2"
Damage/pitting → Replace the shift drum as-
sembly.
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TRANSMISSION