Yamaha RS Venture RST90Y Owner's Manual page 28

Control functions
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).
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.
Spring preload setting*:
Minimum (soft):
161 mm (6.34 in)
Standard:
162 mm (6.38 in)
Maximum (hard):
172 mm (6.77 in)
* Distance A changes 1.5 mm (0.06 in)
with each full turn of the adjusting nut.
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]
Tightening torque:
Locknut:
42 Nm (4.2 m·kgf, 30 ft·lbf)
ESU13132
Adjusting the spring preload of the
center shock absorber and the rear
torsion springs
The spring preload can be adjusted by turning
the adjusting nut on the center shock absorb-
er and the adjusters on the rear torsion
springs. Adjust the spring preload as follows.
22
Center shock absorber
(b)
1. Spring preload adjusting nut
2. Distance A
3. Locknut
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).
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.
Spring preload setting*:
Minimum (soft):
111.5 mm (4.39 in)
Standard:
112.5 mm (4.43 in)
Maximum (hard):
122.5 mm (4.82 in)
* Distance A changes 1.5 mm (0.06 in)
with each full turn of the adjusting nut.
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]
1
3
2
(a)