Adjusting The Front Shock Absorber Assemblies - Yamaha YFM70RY Service Manual

Refer to "FRONT ARMS AND FRONT
SHOCK ABSORBER ASSEMBLIES" on
page 4-49.
3. Check:
• Operation
Pump the front shock absorber assembly up
and down several times.
Unsmooth operation → Replace front shock
absorber assembly.
Refer to "FRONT ARMS AND FRONT
SHOCK ABSORBER ASSEMBLIES" on
page 4-49.
EAS1S3L007
ADJUSTING THE FRONT SHOCK
ABSORBER ASSEMBLIES
EWA1S3L002
WARNING
Always adjust the spring preload, rebound
damping force and compression damping
force of both front shock absorbers to the
same setting. Uneven adjustment can result
in poor handling and loss of stability.
1. Adjust:
• Spring preload
M MMM M MMM M M MMM M
a. Elevate the front wheels by placing a suitable
stand under the frame.
b. Loosen the locknut "1".
c. Turn the adjusting ring "2" in direction "a" or
"b".
Direction "a"
Spring preload is increased (suspen-
sion is harder).
Direction "b"
Spring preload is decreased (suspen-
sion is softer).
M MMM M M MMM M M MMM M
Adjusting length "c"
TIP
• Be sure to remove all dirt and mud from around
the locknut and adjusting ring before adjust-
ment.
• The length of the spring (installed) changes 1.5
mm (0.06 in) per turn of the adjuster.
MMM
ECA1S3L002
NOTICE
Never attempt to turn the adjusting ring be-
yond the maximum or minimum setting.
d. Tighten the locknut "1" with a steering nut
wrench "3".
TIP
Set the torque wrench at a right angle to the
steering nut wrench.
3-29
a
b
Minimum
251.0 mm (9.88 in)
Standard
260.0 mm (10.24 in)
Maximum
263.0 mm (10.35 in)
c
Steering nut wrench
90890-01443
Spanner wrench
YU-33975
CHASSIS
1
2