Removing The Transmission; Checking The Shift Forks; Shift Drum Assembly - Yamaha SR400 2014 Service Manual

EAS26250

REMOVING THE TRANSMISSION

1. Remove:
• Stopper cam assembly
2. Remove:
• Drive axle assembly "1"
• Main axle assembly "2"
TIP
Remove the drive axle assembly and the main
axle assembly simultaneously.
1
EAS26260

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.
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.
2
5-57
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.
EAS26270

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 seg-
ment.
• Shift drum bearing
Damage/pitting  Replace the shift drum
bearing.
TRANSMISSION
1