Yamaha YZF-R1 2020 Service Manual page 387

3. Install:
• Shift fork-C "1"
• Shift drum assembly "2"
• Shift fork guide bar "3"
TIP
• The embossed marks on the shift forks should
face towards the right side of the engine and be
in the following sequence: "R", "C", "L".
• Carefully position the shift forks so that they
are installed correctly into the transmission
gears.
• Install shift fork-C into the groove "a" in the 3rd
pinion gear on the main axle.
• Install the shift fork guide bar "3" in the crank-
case with the cap "b" facing toward the direc-
tion shown in the illustration.
a
2
3
b
3
b
4. Install:
• Shift fork-R "1"
• Shift fork-L "2"
• Shift fork guide bar
• Shift drum retainers "3"
• Bearing
• Oil seal
• Circlip "4"
• Drive axle assembly "5"
TIP
• Install shift fork-R into the groove "a" in the 5th
wheel gear and shift fork-L into the groove "b"
in the 6th wheel gear on the drive axle.
• Install the shift drum retainer with its "OUT"
mark "c" facing outward.
• Make sure that the projection "d" on the drive
axle assembly is inserted into the slot in the
crankcase.
• Make sure that the drive axle bearing circlip "4"
is inserted into the groove "e" in the upper
crankcase.
3
1
5. Check:
• Transmission
Rough movement → Repair.
TIP
Oil each gear, shaft, and bearing thoroughly.
5-104
TRANSMISSION
New
New
Shift drum retainer bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
LOCTITE®
a
b
2
1
3
c
5
4
e
d
c