Removing The Swingarm; Checking The Swingarm - Yamaha MT-03 Service Manual

EAS23350

REMOVING THE SWINGARM

1. Stand the vehicle on a level surface.
EWA13120
WARNING
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. Remove:
• Rear wheel
Refer to "REAR WHEEL" on page 4-12.
• Rear shock absorber assembly
Refer to "REAR SHOCK ABSORBER AS-
SEMBLY" on page 4-60.
3. Measure:
• Swingarm side play
• Swingarm vertical movement
a. Measure the tightening torque of the pivot
shaft nut.
Swingarm pivot shaft nut
92 Nm (9.2 m·kg, 66 ft·lb)
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.
Swingarm side play
(at the end of the swingarm)
1.0 mm (0.04 in)
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,
bearings, washers, and dust covers.
4. Remove:
• Swingarm shaft nut
• Pivot shaft
• Swingarm
EAS23360

CHECKING THE SWINGARM

1. Check:
• Swingarm
Bends/cracks/damage
2. Check:
• Pivot shaft
Roll the pivot shaft on a flat surface.
Bends Replace.
EWA13770
WARNING
Do not attempt to straighten a bent pivot
shaft.
3. Wash:
• Pivot shaft
• Dust seal
• Thrust covers
• Spacer
• Washer
• Bearings
• Bush
• Ball joint
• Collars
Recommended cleaning solvent
Kerosene
4-65
SWINGARM
Replace.