Spark Plugs (F-Series Z1/Z1 Turbo Models); Spark Plugs; (Cfr/2-Stroke F-Series Models) - Arctic Cat CFR 800 2010 Operator's Manual

CAUTION
Use only GENUINE Mikuni brass
main jets. Also, if using an oxygen-
ated gasoline (up to 10% ethanol
or up to 15% MTBE), the carburetor
main jet must be one size larger
than the main jet required for regu-
lar unleaded gasoline.
CAUTION
A main jet which is too small will
cause severe
Engine damage caused by lean jet-
ting WILL NOT BE covered by Arc-
tic Cat Inc. warranty policy.
1. Loosen each carburetor flange
clamp and remove each carburetor
from the intake flange and boot.
2. Remove each drain plug and O-
ring from the carburetor float
chamber and drain the gas into a
small container or shop towels.
3. Using the main jet wrench (from
the tool kit), thread the main jet
out of each carburetor. Account for
the baffle ring/washer. Install the
new main jet and the existing baf-
fle ring/washer. Tighten the main
jet securely.
4. Install each drain plug and O-ring;
then tighten securely.
5. Install and secure the carburetors.
MAINTENANCE
engine damage.
0728-054

SPARK PLUGS

(F-Series Z1/Z1 Turbo
Models)
 NOTE: If spark plugs must be
replaced, take the snowmobile to
an authorized Arctic Cat Snowmo-
bile dealer for inspection and ser-
vice. This service
discretion and expense of the
snowmobile owner.
SPARK PLUGS
(CFR /2-Stroke F-Series
Models)
 NOTE: Always use the recom-
mended spark plugs in the engine.
See the appropriate specifications
chart for correct spark plug gap.
Varying terrain conditions and operat-
ing usage may require spark plugs of a
different heat range. For example, sus-
tained cross-country riding will usually
require colder heat-range spark plugs
while trail riding or other continual
slow speed operation will usually
require hotter heat-range spark plugs.
Removing/Installing
Spark Plugs (CFR
Models)
1. Remove the springs securing the
expansion chamber to the exhaust
manifold and resonator; then move
the expansion chamber out of the
way to access the spark plugs.
2. Remove the spark plug caps from
the plugs.
3. Using a spark plug wrench,
remove the plugs.
4. Install the plugs and finger-tighten.
5. Tighten the spark plugs to 19 ft-lb;
then install the spark plug caps.
6. Place the expansion chamber into
position and secure to the exhaust
manifold and resonator with the
springs.
is at the
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