Disassembling The Lower Case; Checking The Pinion And Forward Gear; Checking The Bearing; Checking The Drive Shaft - Yamaha 250GETO Service Manual

LOWR
2. Remove the needle bearings from the
forward gear using a chisel.
cC
Do not reuse the bearing, always replace
it with a new one.

Disassembling the lower case

1. Remove the needle bearing.
2
1
NOTE:
Since the diameter of the passage in the
lower case and the diameter of the special
service tool 1 are both 40 mm (1.57 in), the
special service tool may not fit into the lower
case. In that case, use a special service tool
with a smaller diameter.
Ball bearing attachment 1:
90890-06635
Driver rod LL 2: 90890-06605
6-15
Lower unit
6G460100
2
1
S6P26070E
2. Remove the roller bearing outer race and
shim(s).
a
4
Bearing outer race puller
assembly 3: 90890-06523
Outer race puller claw B 4:
90890-06533
NOTE:
Install the claws a as shown.
Checking the pinion and forward
gear
1. Check the teeth of the pinion, and the
teeth and dogs of the forward gear.
Replace if cracked or worn.

Checking the bearing

1. Check the bearing. Replace if pitted or if
there is rumbling.

Checking the drive shaft

1. Check the drive shaft. Replace if bent or
worn.
2. Measure the drive shaft runout.
Runout limit: 0.2 mm (0.008 in)
3
6F660235
S6P26210
6S35H11