Gasoline - Oil; Engine Break-In; Muffler - Arctic Cat ZR 120 2021 Operator's Manual

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These numbers are required by the dealer
to complete warranty claims properly. No
warranty will be allowed by Arctic Cat if
either the ESN or VIN is removed or
mutilated in any way.
Always provide the snowmobile model
name, VIN, and engine serial number
when contacting an authorized Arctic Cat
Snowmobile dealer for parts, service,
accessories, or warranty. If the complete
engine must be replaced, ask the dealer to
notify Arctic Cat for correct registration
information.
Gasoline — Oil
This snowmobile has a four-cycle
engine; therefore, it is unnecessary to
premix gasoline and oil.
Recommended Gasoline
The recommended gasoline to use in this
snowmobile is 87 minimum octane regu-
lar unleaded. Oxygenated gasolines are
acceptable gasolines. Do not use gaso-
lines containing methanol.
CAUTION
Do not use white gas or gasolines
containing methanol. Only Arctic Cat-
approved gasoline additives may be
used.
NOTE: If not satisfied with gaso-
line economy of the engine when
using a gas/alcohol blend, switch to
unleaded gasoline without alcohol.
Since gasoline expands as its temperature
increases, the gas tank must be filled to
its rated capacity only. Expansion room
must be maintained in the tank particu-
larly if the tank is filled with cold gaso-
line and then moved to a warm area.
.
Always fill the gas tank in a well-venti-
lated area. Never add gasoline to the
gas tank near any open flames or with
the engine running. DO NOT SMOKE
while filling the gas tank.
Recommended Oil
NOTE: This snowmobile comes
from the factory with SAE 0W-40
0744-926
synthetic oil installed.
The recommended oil to use in the
engine is 0W-40 Synthetic oil. See the
viscosity chart for details.
Any oil used in place of the recom-
mended oil may cause serious engine
damage.

Engine Break-In

The engine requires a short break-in period
(approximately 10 operating hours) before
being subjected to heavy load conditions or
full-throttle operation. Strict adherence to the
break-in procedure will contribute to opti-
mum performance and longevity of the
engine.
During break-in, a maximum of 1/2 throttle
is recommended; however, brief full-throttle
accelerations and variations in driving
speeds contribute to good engine break-in.
After the 10-hour break-in period, the snow-
mobile may be taken to an authorized Arctic
Cat Snowmobile dealer for a checkup and oil
change. This service is at the discretion and
expense of the snowmobile owner.

Muffler

The muffler is designed to reduce engine
noise and improve the total performance
of the engine. If the muffler is removed
from the engine, severe engine damage
will result.
! WARNING
CAUTION
OILCHARTJ
11

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