Removing The Swingarm; Checking The Swingarm; Installing The Swingarm - Yamaha YFM70RY Service Manual

EAS23350

REMOVING THE SWINGARM

1. Place the vehicle on a level surface.
2. Check:
• Swingarm side play
• Swingarm vertical movement
M MMM M MMM M M MMM M
a. Check the tightening torque of the pivot shaft
nut.
Pivot shaft nut
100 Nm (10.0 m·kg, 72 ft·lb)
b. Check the swingarm side play "A" by moving
the swingarm from side to side.
If swingarm side play is noticeable, check the
spacers, bearings, bushings, and frame piv-
ot.
c. 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, bear-
ings, bushings, and frame pivot.
L LLL L LLL L L LLL L
3. Remove:
• Pivot shaft nut
• Washer
• Pivot shaft
• Swingarm
EAS23360

CHECKING THE SWINGARM

1. Check:
• Swingarm
Bends/cracks/damage → Replace.
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
2. Check:
• Pivot shaft
Roll the pivot shaft on a flat surface.
Bends → Replace.
EWA13770
WARNING
MMM
Do not attempt to straighten a bent pivot
shaft.
3. Clean:
• Pivot shaft
• Spacers
• Bearings
• Bushings
4. Check:
• Dust covers
• Spacers
• Oil seals
Damage/wear → Replace.
• Bearings
LLL
• Bushings
Damage/pitting → Replace.
EAS23380

INSTALLING THE SWINGARM

1. Lubricate:
• Pivot shaft
2. Install:
• Bearings "1"
• Bushings "2"
(to swingarm)
4-61
SWINGARM
Recommended cleaning solvent
Kerosene
Recommended lubricant
Lithium-soap-based grease
Installed depth of bearing "a"
5 mm (0.20 in)
Installed depth of bushing "b"
9 mm (0.35 in)