Yamaha XT250X 2008, Service Manual, Page: 139 / 282

SWINGARM
4-55
EAS23350
REMOVING THE SWINGARM
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that the
rear wheel is elevated.
2. Measure:
●
Swingarm side play
●
Swingarm vertical movement
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a. Measure the tightening torque of the pivot
shaft nut.
b. Measure the swingarm side play “A” by mov-
ing the swingarm from side to side.
c. If the swingarm side play is out of specifica-
tion, check the spacers, bearings, washers,
and dust covers.
d. Check the swingarm vertical movement “B”
by moving the swingarm up and down.
If swingarm vertical movement is not smooth
or if there is binding, check the spacers,
spacers, washers, and dust covers.
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EAS23360
CHECKING THE SWINGARM
1. Check:
●
Swingarm
Bends/cracks/damage
→
Replace.
2. Check:
●
Pivot shaft
Roll the pivot shaft on a flat surface.
Bends
→
Replace.
WARNING
EWA13770
Do not attempt to straighten a bent pivot
shaft.
3. Wash:
●
Pivot shaft
●
Dust covers
●
Spacer
●
Washers
●
Bushing
4. Check:
●
Dust covers
●
Spacer
●
Washers
●
Oil seals
Damage/wear
→
Replace.
●
Bushing
Damage/pitting
→
Replace.
EAS23380
INSTALLING THE SWINGARM
1. Lubricate:
●
Bushing
●
Spacers
●
Dust covers
●
Pivot shaft
2. Install:
●
Bushing “1”
Pivot shaft nut
80 Nm (8.0 m•kg, 58 ft•lb)
Swingarm up/down stroke limit at
rear end position of the rear arm
1.0 mm
Swing arm play limit on the pivot
shaft
1.0 mm
T
R
.
.
A
B
Recommended cleaning solvent
Kerosene
Recommended lubricant
Molybdenum disulfide grease
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