4.2
Fuel Systems
SERVICE WARNINGS AND PRECAUTIONS
Service Warnings
When servicing the fuel system, it is
important to heed the following warnings.
WARNING
PROPOSITION 65 WARNING
Snowmobile engines discharge fuel and exhaust which
contain chemicals known to the State of California to
cause cancer and birth defects or other reproductive
harm, onto the snow on which they operate. Keep this
engine properly tuned and avoid unnecessary idling
and spillage during fueling.
Do not smoke or allow open flames or sparks in or near
the area where refueling is performed or where
gasoline is stored or used.
Do not overfill the tank past the bottom of the filler neck.
If you get gasoline in your eyes or if you swallow
gasoline, see your doctor immediately.
Never start the engine or let it run in an enclosed area.
Gasoline powered engine exhaust fumes are
poisonous and can cause loss of consciousness and
death in a short time.
If you spill gasoline on your skin or clothing,
immediately wash it off with soap and water and
change clothing.
CAUTION
A main jet that is too small will cause a lean operating
condition and may cause serious engine damage. Jet
according to the jetting charts provided for each
snowmobile.
Most Polaris snowmobile engines are calibrated to run
using 91 octane (oxygenated) or 89 octane (non-
oxygenated) fuels. Polaris snowmobiles requiring
higher octane fuel have the required octane level noted
on the fuel tank filler cap.
Never use fuel containing more than 10% ethanol or E85
fuels.
All four fuel injectors must share the same color code
(Yellow, Blue, or Red).
800 CFI engines use high flow injectors regardless of
color coding. Always verify the fuel injector part number
prior to installation.
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