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The front shock springs determine the
amount of ski pressure and the reaction
of the front suspension to rough terrain.
The amount of ski pressure can also be
changed by adjusting the length of the
skid frame front arm limiter straps.
The rear springs influence the load carry-
ing capability of the snowmobile and
should be adjusted for the weight and rid-
ing preference of the operator.
Adjusting Front (Ski)
Shock Springs (CFR/F8/Z1
Turbo/EXT Models)
NOTE: On the F5/F570/Z1 non-
turbo models, the front (ski) shock
springs are not adjustable.
The front (ski) shock springs are individu-
ally adjustable for the terrain conditions
and driving style of the operator. The
spring adjuster nut has been set at the fac-
tory 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 ten-
sion.
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.
0745-159
Adjusting Fox Air Shocks
(Sno Pro Models)
NOTE: It is recommended to moni-
tor the air pressure in the air shocks
once every month.
NOTE: Adjusting air shocks may
be done by the snowmobile owner if
qualified to do so. If the owner does
not feel qualified, take the snowmo-
bile to an authorized Arctic Cat
Snowmobile dealer for this service.
This service is at the discretion and
expense of the snowmobile owner.
The air shocks are individually adjustable
for the terrain conditions and driving style
of the operator. The shocks are preset at
the factory (see chart) as an initial setting;
however, it is possible to “fine tune” the
shocks to match the operator’s weight,
riding style, and terrain conditions.
Checking and adjusting air pressure must
be done at riding temperature (outside).
Also, it is advisable to check air pressure
when the outside temperature varies
more than 25°.
NOTE: Care should be taken to have
equal pressure in the front (ski) shocks
before operating the snowmobile.
To increase or decrease air pressure, use
the following procedure.
NOTE: When adjusting air pres-
sure, all weight must be removed
from the suspension, and the shock
absorbers must be fully extended.
NOTE: Adding air pressure will
increase the air spring force; reduc-
ing air pressure will decrease air
spring force.
1. Remove the air valve cap from the
shock.
Initial Setting Chart
Model
Front Shock
(Ski)
Rear Arm Shock
Sno Pro
Models
5.3 kg/cm
2
(75 psi)
N/A
! WARNING
Do not exceed 10.5 kg/cm
2
(150 psi)
in the shock.