Yamaha RS90K, Service Manual

Page: 206 / 841

2-79
INSP
ADJ
REAR SUSPENSION
2. Adjust:
• Extension spring preload
Adjustment steps:
• Turn the adjusting nut 1 in or out.
RST90TF
CAUTION:
Be sure the left and right spring preload is
same.
Adjusting nut Turn in Turn out
Preload Harder Softer
Snow condition Icy Soft
Standard length
a
16 ~ 18 mm (0.63 ~ 0.71 in)
a
1
Rear suspension damping force adjustment
The damping force can be adjusted by turning the
adjuster
1 .
RSG90
* With the adjuster fully turned lightly in direction
a
CAUTION:
• Do not continue to turn the adjuster in direc-
tion
a
after it stops. The shock absorber can
be damaged and damping force adjustments
cannot be made.
• Do not turn the adjuster in direction
b
more
than 16 clicks. Even if the adjuster is continu-
ally turned after 16 clicks, there will be no
change in the damping force.
• Be sure to stop the adjuster at a position
where there is a click.
Adjuster
position
16 clicks out 7 clicks out 1 click out
Minimum Standard Maximum
Turns out
b
*
← →
Turns in
a
Damping
force
Soft
← →
Hard