Removing The Transmission; Checking The Shift Forks - Yamaha YZF-R1(B) 2012 Service Manual

EAS26250

REMOVING THE TRANSMISSION

1. Remove:
• Drive axle assembly "1"
• Shift drum retainers "2"
• Shift fork guide bars
• Shift fork "L" and "R"
• Shift drum assembly
• Shift fork "C"
2. Remove:
• Main axle assembly "1"
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a. Insert two bolts "2" 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 upper
crankcase.
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3. Remove:
• Oil delivery pipe 2 "1"
• Bearings "2"
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 sur-
face.
Bends → Replace.
EWA12840
WARNING
Do not attempt to straighten a bent shift
fork guide bar.
5-95
TRANSMISSION