Yamaha YFM250XL(C) Service Manual page 171

ENGINE ASSEMBLY AND ADJUSTMENT
3.Install:
Rear wheel drive assembly and swing-
arm.
NOTE:
Before installing the swingarm. Lubricate
the following parts.
Swingarm pivot side:
1) Bearings 1
2) Oil seals 2
3) Collars 3
4) Pivot shafts 4
Drive shaft side:
1) Drive shaft splines 5
2) Coupling gear splines 6
Lithium-soap Base Grease
Before installing the swingarm, do not for-
get to fit the drive shaft 7.
Insert the drive shaft 7 into the universal
joint 8 properly.
4.Connect:
Rubber boot 1
5.Install:
Pivot shafts 2 (swingarm)
Locknut 3 (pivot shaft-right)
NOTE:
Temporary tighten the pivot shafts and
locknut, do not torque them at this point.
6.Check:
Drive shaft operation
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Checking steps:
Block the front wheels, and elevate the
rear wheels by placing the suitable stand
under the flame.
Move the rear wheels back and forth.
Check the drive shaft operation. If there is
unsmooth operation recheck the drive
shaft condition of installation.
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ENG
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