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

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
2. Remove the retainer and shim(s).
3
NOTE:
Install the M6 bolts as shown.
Flywheel puller 3: 90890-06521
Bearing outer race puller
assembly 4:
90890-06523
6S35H11
Drive shaft and lower case (counter rotation model)
2
1
S6P26070E
4
S6P26380E
3. Remove the needle bearing from the
retainer.
5
Needle bearing attachment 5:
90890-06654
Driver rod L3 6: 90890-06652
Checking the pinion and reverse
gear
1. Check the teeth of the pinion, and the
teeth and dogs of the reverse 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)
6
S69J6470
S6P26210
6-46
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