Yamaha F4B - Assembling the Lower Case; Checking the Drive Shaft; Checking the Lower Case

8-12
Drive shaft and lower case
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A
Checking the drive shaft
1. Check the drive shaft. Replace if dam-
aged or worn.
2. Measure the drive shaft runout.
Checking the lower case
1. Check the lower case. Replace if cracked
or damaged.
Assembling the lower case
Do not reuse a bearing, bushing, or oil
seal, always replace it with a new one.
1. Install a new bushing a.
2. Install a new bushing c.
3. Install new oil seals f to the specified
depth a.
4. Install the ball bearing h.
Drive shaft runout: 0.4 mm (0.02 in)
Bushing installer center bolt b:
90890-06601
a
b
a
b
Driver rod L3 d: 90890-06652
Bushing attachment e: 90890-06649
Driver rod L3 d: 90890-06652
Needle bearing attachment g:
90890-06615
Depth a: 1.0 mm (0.04 in)
Driver rod LS i: 90890-06606
Bearing outer race attachment j:
90890-06628
c
d
e
d
g
f
a
i
j
h
b