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A. TAN or LIGHT BROWN insula-
tor indicates correct spark plugs
(heat range).
B. LIGHT GRAY or WHITE insula-
tor indicates over-heating of the
engine. This condition is caused by
a too lean condition or incorrect
spark plugs (heat range too hot).
C. BLACK insulator indicates fuel
in the combustion chamber is not
burning completely. This condi-
tion is caused by a too rich con-
dition, too much oil, or incorrect
spark plugs (heat range too cold).
NOTE: If the center electrode insu-
lators are light gray, white, or black
and if the carburetor adjustments
(2000), oil-injection pump synchroni-
zation, and ignition timing are correct,
different heat-range spark plugs may
be necessary. Authorized Arctic Cat
Snowmobile dealers have detailed
spark plug information. Consult a
dealer before changing spark plugs,
as incorrect heat-range spark plugs
could cause poor engine performance
or engine damage.
Valve Clearance (5000)
After 5000 miles or prior to seasonal
storage,
valve
clearance
should
be
checked and adjusted as necessary.
NOTE: Take the snowmobile to an
authorized Arctic Cat Snowmobile
dealer for inspection and service.
This service is at the discretion and
expense of the snowmobile owner.
Battery (Electric Start)
These standard and sealed batteries after
being in service require regular cleaning
and recharging in order to deliver peak per-
formance and maximum service life. The
following procedures are recommended
for cleaning and maintaining standard and
sealed batteries. Always read and follow
instructions provided with battery char-
gers and battery products.
NOTE: Battery maintenance 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.
To remove and charge the battery, use the
following procedure:
1. Remove the negative battery cable;
then remove the positive cable and
on the standard battery, the battery
vent tube. Remove the battery from
the snowmobile. Care should be
taken not to damage the vent tube.
CAUTION
If a spark plug is light gray, white, or
black and another is tan or light
brown, take the snowmobile to an
authorized Arctic Cat Snowmobile
dealer for inspection and service. If
not under warranty, this service is at
the discretion and expense of the
snowmobile owner.
CAUTION
It is critical that the checking/adjust-
ing valve clearance be done at the
recommended
intervals
or
severe
engine damage may occur.
! WARNING
Any time service is performed 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 handling bat-
teries. When servicing battery in
enclosed space, keep the area well-
ventilated. Make sure battery venting
is not obstructed.
! WARNING
Battery posts, terminals, and related
accessories contain lead and lead
compounds, chemicals known to the
state of California to cause cancer
and reproductive harm. Wash hands
after handling.
! WARNING
Avoid spillage and contact with skin,
eyes, and clothing.
CAUTION
Do not charge the battery while it is in
the snowmobile with the battery ter-
minals connected.
