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The longevity and safety of the snowmo-  NOTE: Always check the coolant
bile can be increased by making periodic level with the engine cold.
checks of the items in the preceding
Locate the appropriate FULL mark on
checklist.
the coolant reservoir. If coolant is below
If, at any time, abnormal noises, vibra- the FULL mark, add coolant to the FULL
tions, or improper working conditions of mark.
any component of this snowmobile are
detected, DO NOT OPERATE THE
CAUTION
SNOWMOBILE. Take the snowmobile
to an authorized Arctic Cat Snowmobile If the coolant is below the FULL
mark and if coolant has been
dealer for inspection and adjustment or COLD
added, immediately inspect for leakrepair. If not under warranty, this service age and/or damage. If leakage or
is at the discretion and expense of the damage is detected, take the snowsnowmobile owner.
mobile to an authorized Arctic Cat
The snowmobile should be taken to an Snowmobile dealer for service. If not
authorized Arctic Cat Snowmobile dealer under warranty, this service is at the
at the end of each snowmobiling season discretion and expense of the snowfor general inspection and for off-season mobile owner.
storage servicing. This inspection and Spark Plugs
servicing is at the expense of the snow NOTE: Always use the recommobile owner.
Fuel System
! WARNING
Whenever any maintenance or
inspection is made on the fuel system in which there may be fuel leakage, there should be no welding,
smoking, open flames, etc., in the
area.
Gasoline Additives
mended spark plugs in the engine.
See the appropriate specifications
chart for correct spark plug gap.
Varying terrain conditions and operating
usage may require spark plugs of a different heat range. For example, sustained
cross-country riding will usually require
colder heat-range spark plugs while trail
riding or other continual slow speed
operation will usually require hotter heatrange spark plugs.
Fuel de-icer can be used for all models. Removing/Installing Spark
Also, periodic use of an injector cleaner Plugs
is recommended especially in the last
1. Remove the springs securing the
tank of gasoline before storage. Arctic
expansion chamber to the exhaust
Cat Fuel Stabilizer (p/n 0436-907) should
manifold and resonator.
also be added to the last tank of gasoline
before storage.
2. Move the expansion chamber out of
the way to access the spark plugs.
Fuel Pickup Valves
All models are equipped with fuel pickup
valves in the gas tank. If ever there is a
restricted fuel flow and a pickup valve is
suspected, take the snowmobile to an
authorized Arctic Cat Snowmobile dealer
for this service. If not under warranty,
this service is at the discretion and
expense of the snowmobile owner.
3. Remove the spark plug caps from
the plugs.
Coolant Level
7. Place the expansion chamber into
position and secure to the exhaust
manifold and resonator with the
springs.
 NOTE: Use a good quality, ethylene glycol-based, automotive-type
coolant.
4. Using a spark plug wrench, remove
the plugs.
5. Install the plugs and finger-tighten.
6. Tighten the spark plugs to 19 ft-lb;
then install the spark plug caps.
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