Yamaha SR1NLK Operator's Manual page 37

Each shock absorber should be visibly
checked weekly for fluid leakage, cracks
or breaks in the body, or a bent shaft. If any
one of these conditions is detected,
replacement is necessary. Take the snow-
mobile to an authorized Yamaha Snowmo-
bile dealer for this service. If not under
warranty, this service is at the discretion
and expense of the snowmobile owner.
Adjusting Front Ski Shock
Springs
The front ski shock springs are individually
adjustable for the terrain conditions and
driving style of the operator. The spring
adjuster nut has been set at the factory so the
correct amount of threads are exposed
between the adjuster nut and the threaded
shock body as an initial setting. Additional
ski pressure can be obtained by tightening
the spring tension; ski pressure can be
decreased by relaxing spring tension.

NOTE: Equal adjustments should
be maintained on both sides of the
snowmobile.
Front ski shock spring pre-load adjust-
ment is accomplished by loosening the
adjuster nut locking collar (B) from the
adjuster nut (A) and using the Spring
Adjuster Tool from the tool kit, rotating
the adjuster nut in whichever direction is
desired. Tighten the locking collar
against the adjuster nut.
To adjust the damping, use the adjust-
ment lever located above the EVOL
chamber on the shock. Three settings
may be chosen: 1, 2, or 3.
Adjusting Skid Frame
Front Arm Spring
The skid frame front arm shock spring ten-
sion and the limiter straps are adjustable.
However, Yamaha recommends that the
shock spring be maintained at the factory pre-
set of 3.2-6.4 mm (1/8-1/4 in.) preload. Tight-
ening the skid frame front arm shock spring
may cause improper balance and may ruin
the handling features of the snowmobile.
The length adjustment of the front arm
limiter straps determines the weight distri-
bution between the front of the skid frame
and the skis. Tightening the limiter strap
(shortening the strap) will pull up on the
front of the skid frame and will increase ski
pressure. Loosening the limiter strap
(lengthening the strap) lowers the front of
the skid frame and decreases ski pressure.
When customizing the amount of ski
pressure, be sure to adjust both straps
equally and do not over-adjust the limiter
straps to adversely affect steering and
operator control of the snowmobile.
Some experimentation may be required
until the proper adjustment for the opera-
tor's individual style is obtained.

NOTE: If the limiter straps are
adjusted, it is highly recommended
that at least a minimum of 3.2 mm
(1/8 in.) preload on the shock spring
be maintained.
0748-941
Do not adjust the front arm limiter
straps to a point at which steering and
operator control of the snowmobile
are adversely affected.
! WARNING
0745-159
35