Spark Plugs - Arctic Cat ZR 900 Series 2006 Operator's Manual

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 baffle ring/
washer. Tighten the main jet
securely.
4. Install each drain plug and O-
ring; then tighten securely.
5. Install and secure the carbure-
tors.
Changing Main Jets (TM-Style)
1. Remove all components from
th e fr on t of th e a ir- i n ta k e
silencer.
2. Remove the screws securing the
air-intake silencer; then move
the silencer forward and out of
the engine compartment.
3. Loosen the carburetor flange
clamps; then slide the carbure-
tors out of the intake flanges.
4. Tilt the carburetors to access the
main jets.
5. Remove each drain plug and O-
ring from the carburetor float
chamber and drain the gas into
a small container or shop tow-
els.
MAINTENANCE
6. Using the main jet wrench
(from the tool kit), thread the
main jet out of each carburetor.
Account for the washer. Install
each new main jet and the exist-
ing washer. Tighten the main jet
securely.
0728-054
7. Install each drain plug and O-
ring; then tighten securely.
8. Push the carburetors back into
position and into the intake
flanges; then tighten the carbu-
retor flange clamps securely.
9. Place the air-intake silencer into
position in the engine compart-
m e n t a n d s e c u r e w i t h t h e
screws.
10. Install all components onto the
air-intake silencer and secure
with existing hardware.

SPARK PLUGS


NOTE: Always use the recom-
m e n d e d s p a r k p l u g s i n t h e
engine. See the appropriate spec-
ifications chart for correct spark
plug gap.
Varying terrain conditions and oper-
ating usage may require spark plugs
of a different heat range. For exam-
ple, sustained cross-country riding
will usually require colder heat-
range spark plugs while trail riding
or other continual slow speed opera-
tion will usually require hotter heat-
range spark plugs.
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