Yamaha RS Venture RST90Y Owner's Manual page 29

Tightening torque:
Locknut:
42 Nm (4.2 m·kgf, 30 ft·lbf)
Rear torsion springs
EWS00750
WARNING
The left and right spring preloads must be
adjusted to the same setting. Uneven set-
tings can cause poor handling and loss of
stability.
(a)
1. Spring preload adjuster
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).
Spring preload setting:
Minimum (soft):
S
Standard:
M
Maximum (hard):
H
(b)
Control functions
ESU13092
Adjusting the 2-up adjusting blocks
EWS00760
WARNING
Make sure that the 2-up adjusting blocks
are installed in the same position on both
sides of the snowmobile, otherwise poor
handling and loss of stability may result.
The spring force can be adjusted by changing
the position of the 2-up adjusting blocks.
1. 2-up adjusting block
TIP
Be sure to make this adjustment when
G
there is no load (rider or cargo) on the
snowmobile.
Use the special tools included in the own-
G
er's tool kit to make the adjustment.
1. Insert the special tools into the 2-up ad-
justing block as shown.
23