2.30
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
FUEL / AIR INTAKE / EXHAUST MAINTENANCE
FUEL SYSTEM MAINTENANCE
WARNING
Gasoline is highly flammable and explosive under
certain conditions.
• Always exercise extreme caution whenever handling
gasoline.
• Always refuel outdoors or in a well-ventilated area.
• Always turn off the engine before refueling.
• Do not overfill the tank. Do not fill the tank neck.
• Do not smoke or allow open flames or sparks in or
near the area where refueling is performed or where
gasoline is stored.
• If gasoline spills on your skin or clothing, immediately
wash it off with soap and water and change clothing.
• Never start the engine or let it run in an enclosed
area. Engine exhaust fumes are poisonous and can
cause loss of consciousness or death in a short time.
WARNING
The engine exhaust from this product contains
chemicals known to cause cancer, birth defects or other
reproductive harm. Operate this vehicle only outdoors
or in well-ventilated areas.
Snowmobiles do not feature in-line fuel filters. The fuel
pump uses a sock-type pickup filter located within the
fuel tank. This filter should only require maintenance if
debris or foreign material enters the fuel tank. See Fuel
System chapter for more information.
Contaminated or poor quality fuel may shorten the life of
fuel system components and result in poor engine
performance. Always store fuel in clean fuel containers.
Inspect the fuel lines regularly for signs of deterioration
or damage. Always check fuel line condition after periods
of storage. Normal deterioration from weather and fuel
compounds may occur. Replace worn or damaged fuel
lines promptly.
IMPORTANT
Kinking the fuel lines or using a pliers or similar tools to
remove fuel lines may cause damage to the lines. If a
fuel line has been damaged or kinked, replace it
promptly.
FUEL RECOMMENDATION
NOTICE
Prolonged exposure to petroleum based products may
damage paint. Always protect painted surfaces when
handling fuel.
NORTH AMERICAN FUEL
For peak performance, POLARIS recommends the use
of fresh quality, non-oxygenated 91 octane level fuel or
above. Although 87 octane fuel is usable, some engine
performance will be lost and fuel economy will decrease.
NEVER use unleaded fuels with an ethanol rating of E15
or E85 as severe engine damage may occur.
IMPORTANT
NEVER use fuel containing more than 10 percent
ethanol, including E85 or 88 E15 fuel, in your
snowmobile.
REQUIRE-
MENT
650 MODELS
850 MODELS
Minimum Fuel
87 E10 (R+M)/2
87 E10 (R+M)/2
Maximum
Performance
Fuel
91 E0 (R+M)/2
91 E0 (R+M)/2
Instrument
Cluster Fuel
Selector
Setting*
•
91+ E0 Fuel
=
91 PREMIUM
MODE
•
ANY E10 OR
UNSURE
Fuel
= 87
ETHANOL
MODE
•
91+ E0 Fuel
=
91 PREMIUM
MODE
•
ANY E10 OR
UNSURE
Fuel
= 87
ETHANOL
MODE
* = When the type of fuel in the tank is unknown,
Polaris recommends setting the fuel selector feature to
E10 – 87 ETHANOL mode.
INTERNATIONAL FUEL
For peak performance, POLARIS recommend the use of
95 octane E10 gasoline or higher octane. If lower octane
is used, some engine performance will be lost and fuel
economy will decrease. Do not use gasoline with higher
ethanol rating than E10.
