13
Air-Intake Silencer
Used in conjunction with the fuel intake
system is a specially designed air-intake
silencer. The purpose of the silencer is to
quiet the intake of fresh air. Since the fuel
intake system is calibrated with the air-
intake silencer in place, the engine must
never be run with the silencer removed.
Performance will not be improved if the
air-intake silencer is removed. In con-
trast, severe engine damage will occur.
Cooling System
These snowmobiles are equipped with a
closed liquid cooling system for engine
cooling. The cooling system should be
inspected daily for leakage and damage.
Also, the coolant level should be checked
daily. If leakage or damage is detected,
take the snowmobile to an authorized
Arctic Cat Snowmobile dealer for ser-
vice. If not under warranty, this service is
at the discretion and expense of the
snowmobile owner.
When filling the cooling system, use an
ethylene glycol-based coolant/water mix-
ture which will satisfy the coldest antici-
pated weather conditions of your area in
accordance with the coolant manufac-
turer’s recommendations.
NOTE: If operating on low snow,
ice, or hard-packed snow conditions,
it is recommended that Ice Scratch-
ers (p/n 5639-897) be installed and
engaged to reduce wear strip wear
and engine overheating.
For checking/filling cooling system, refer
to Coolant Level sub-section in the Main-
tenance section.
Battery
(Electric Start)
It is extremely important that the battery
be maintained at full charge at all times
and that the battery connections be clean
and tight. If charging the battery becomes
necessary, refer to Battery sub-section in
the Maintenance section.
Jump-Starting
NOTE: Arctic Cat does not recom-
mend jump-starting a snowmobile
with a dead battery but rather to
remove the battery, service it, and
correctly charge it; however, in an
emergency, it may be necessary to
jump-start a snowmobile. If so, use
the following procedure to carefully
and safely complete this procedure.
NOTE: To access the battery, the
seat must be removed.
1. On the snowmobile to be jump-started,
slide any terminal boots away.
2. Inspect the battery for any signs of
electrolyte leaks, loose terminals, or
bulging sides. Leaking or bulging
battery cases may indicate a frozen
or shorted battery.
3. Inspect the vehicle to be used for
jump-starting to determine if voltage
and ground polarity are compatible.
The vehicle must have a 12-volt DC,
negative ground electrical system.
CAUTION
These snowmobiles are not designed
to be operated in dusty conditions.
Operating the snowmobile in dusty
conditions will result in severe
engine damage.
! WARNING
Improper handling or connecting of a
battery may result in severe injury
including acid burns, electrical burns,
or blindness as a result of an explo-
sion. Always remove rings and
watches. Any time service is per-
formed on a battery, the following
must be observed: keep sparks, open
flame, cigarettes, or any other flame
away. Always wear safety glasses.
Protect skin and clothing when han-
dling a battery. When servicing a bat-
tery in an enclosed space, keep the
area well-ventilated.
! WARNING
If any of these conditions exist, DO
NOT attempt to jump-start, boost, or
charge the battery. An explosion
could occur causing serious injury.
CAUTION
Always make sure the electrical sys-
tems are of the same voltage and
ground polarity prior to connecting
jumper cables. If not, severe electri-
cal damage may occur.
