Middle Gear Lash Adjustment - Yamaha YFM250XL(C) Service Manual

MIDDLE GEAR SERVICE
2.Apply:
Sealant 1
To the mating surface of both case halves.
Sealant (Quick Gasket)
P/N. ACC-QUICK-GS-KT
Yamaha bond No. 1215
P/N. 90890-85505
3.Install:
Dowel pins
Middle gear case cover 2
NOTE:
Before installing the middle gear case cover
onto the crankcase, shift the gear into
"FORWARD".
4.Tighten:
Bolts 3 (middle gear case)
Bolts (middle gear case cover):
10 Nm (1.0 m • kg, 7.2 ft • lb)
5.Tighten:
Bolts 1 (bearing housing)
Bolts (bearing housing):
23 Nm (2.3 m • kg, 17 ft • lb)
NOTE:
When installing the bearing housing onto
the crankcase, make sure that the arrow
sign is facing upwards.
6.Check:
Middle driven shaft operation
Unsmooth operation → Repair.

MIDDLE GEAR LASH ADJUSTMENT

NOTE:
When measuring backlash, tighten all
securing bolts (middle gear case cover
bearing housing) with specified torque.
1.Attach:
Gear lash measurement tool 1
Dial gauge 2
Gear lash measurement tool:
P/N. YM-01231, 90890-01231
Dial gauge:
P/N. YM-03097, 90890-03097
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DRIV
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