2009 Yamaha Motorsports RS Viking Professional Owners Manual - Page 28

2009 Yamaha Motorsports RS Viking Professional Manual

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Control functions settings may allow more precise handling and control over certain types of terrain or riding conditions. If you are not familiar with suspension adjustments, have a Yamaha dealer make these adjustments. EWS00151 (a) (b) 1. Spring preload adjusting ring WARNING Read and understand the following information before handling shock absorbers that contain highly pressurized nitrogen gas. G Do not tamper with or attempt to open the cylinder assemblies. G Do not subject the shock absorbers to an open flame or other high heat source. This may cause the unit to explode due to excessive gas pressure. G Do not deform or damage the cylinders in any way. Cylinder damage will result in poor damping performance. G Do not dispose of a damaged or worn out shock absorber yourself. Take the shock absorber to a Yamaha dealer for any service. ESU10883 To increase the spring preload and thereby harden the suspension, turn the adjusting ring in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting ring in direction (b). Spring preload setting: Minimum (soft): 1 Standard: 1 Maximum (hard): 5 ESU12593 Adjusting the spring preload of the front shock absorbers EWS00720 Adjusting the spring preload of the center shock absorber and the rear shock absorber The spring preload can be adjusted by turning the adjusting ring on the center shock absorber and the adjusting ring on the rear shock absorber. Adjust the spring preload as follows. WARNING The spring preload of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability. The spring preload can be adjusted by turning the adjusting rings. 22

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Control functions
22
settings may allow more precise handling and
control over certain types of terrain or riding
conditions.
If you are not familiar with suspension adjust-
ments, have a Yamaha dealer make these
adjustments.
WARNING
EWS00151
Read and understand the following infor-
mation before handling shock absorbers
that contain highly pressurized nitrogen
gas.
●
Do not tamper with or attempt to open
the cylinder assemblies.
●
Do not subject the shock absorbers to
an open flame or other high heat source.
This may cause the unit to explode due
to excessive gas pressure.
●
Do not deform or damage the cylinders
in any way. Cylinder damage will result
in poor damping performance.
●
Do not dispose of a damaged or worn
out shock absorber yourself. Take the
shock absorber to a Yamaha dealer for
any service.
ESU10883
Adjusting the spring preload of the
front shock absorbers
WARNING
EWS00720
The spring preload of the left and right
shock absorbers must be adjusted to the
same setting. Uneven settings can cause
poor handling and loss of stability.
The spring preload can be adjusted by turning
the adjusting rings.
To increase the spring preload and thereby
harden the suspension, turn the adjusting ring
in direction (a). To decrease the spring pre-
load and thereby soften the suspension, turn
the adjusting ring in direction (b).
ESU12593
Adjusting the spring preload of the
center shock absorber and the rear
shock absorber
The spring preload can be adjusted by turning
the adjusting ring on the center shock absorb-
er and the adjusting ring on the rear shock ab-
sorber. Adjust the spring preload as follows.
1.
Spring preload adjusting ring
Spring preload setting:
Minimum (soft):
1
Standard:
1
Maximum (hard):
5
(a)
(b)