Yamaha F400A 2022 - Installing the Forward Gear; Installing the Drive Shaft

Drive shaft and lower case (regular rotation model)
8-34
Installing the forward gear
1. Install:
• Adapter assembly “a”
• Forward gear shim “1”
• Thrust bearing “2”
• Forward gear assembly “b”
TIP:
Make sure to fit the dowel “3” into the slot “c”
in the lower case.
Installing the drive shaft
1. Install:
• Pinion shims
• Spacer
• Drive shaft assembly
•Pinion
• Pinion nut
a. Install new pinion shims “1”, spacer
“2”, and drive shaft assembly “a”.
TIP:
Position the thickest shim on the bottom.
b. Install the pinion “1” and pinion nut “2”
temporarily.
TIP:
• When installing the pinion, lift up the drive
shaft slightly and align the splines on the
drive shaft with the splines on the pinion.
• Tighten the pinion nut “2” temporarily until
the tapered portion of the pinion “1” con-
tacts the tapered portion of the drive shaft.
c. Tighten the pinion nut “2” to the speci-
fied torque.
Installation depth “a”
0.75–1.25 mm (0.030–0.049 in)
New
c
b
2
1
a
3
GG
GG
New
Drive shaft holder “3”
90890-06935
Pinion nut holder “4”
90890-06451
Socket adapter “5”
90890-06936
Holder guide “6”
90890-06937
a
GG
1
2
1
2
5
4
3
6
GG