Yamaha RS90PLTB Offroad Vehicle User Manual


 
Control functions
40
TIP
The spring preload setting is determined by
measuring distance A, shown in the illustra-
tion. The longer distance A is, the higher the
spring preload; the shorter distance A is, the
lower the spring preload.
3. Tighten the locknut to the specified
torque. NOTICE: Always tighten the
locknut against the adjusting nut, and
then tighten the locknut to the speci-
fied torque.
[ECS00860]
Rear torsion springs
WARNING
EWS00750
The left and right spring preloads must be
adjusted to the same setting. Uneven set-
tings can cause poor handling and loss of
stability.
To increase the spring preload and thereby
harden the suspension, turn the adjuster in di-
rection (a). To decrease the spring preload
and thereby soften the suspension, turn the
adjuster in direction (b).
ESU14300
Adjusting the spring preload of the
rear shock absorber (RS90P /
RS90PLT)
The spring preload can be adjusted by turning
the adjusting nut on the rear shock absorber.
Adjust the spring preload as follows.
1. Loosen the locknut.
2. To increase the spring preload and there-
by harden the suspension, turn the ad-
justing nut in direction (a). To decrease
the spring preload and thereby soften the
suspension, turn the adjusting nut in di-
rection (b).
Spring preload setting*:
Minimum (soft):
RST90 111.5 mm (4.39 in)
RST90PGT 122.1 mm (4.81 in)
Standard:
RST90 112.5 mm (4.43 in)
RST90PGT 122.1 mm (4.81 in)
Maximum (hard):
RST90 122.5 mm (4.82 in)
RST90PGT 132.1 mm (5.20 in)
* Distance A changes 1.5 mm (0.06 in)
with each full turn of the adjusting nut.
Tightening torque:
Locknut:
42 Nm (4.2 m·kgf, 30 ft·lbf)
1. Spring preload adjuster
Spring preload setting:
Minimum (soft):
S
Standard:
M
Maximum (hard):
H
(a)
(b)
1
U8HV10E0.book Page 40 Monday, May 16, 2011 1:15 PM