Engine Break-In; Drive Belt Break-In - Arctic Cat BlastZR/LT/M-4000 Operator's Manual

Recommended Injection
Oil
The recommended oil to use in the oil-
injection system is Arctic Cat C-TEC2
Synthetic 2-Cycle Oil. This oil is spe-
cially formulated and meets all of the
lubrication requirements of the Arctic
Cat C-TEC2 snowmobile engine.
CAUTION
Any oil used in place of the recom-
mended oil could cause serious
engine damage.
Filling Gas Tank
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.
Also, if the snowmobile is to remain on a
trailer after filling the gas tank, the bed of
the trailer must be maintained level to
prevent gasoline from draining out
through the gas tank vent hose.
! WARNING
Always fill the gas tank in a well-venti-
lated area. Never add gasoline to the
snowmobile gas tank near any open
flames or with the engine running. DO
NOT SMOKE while filling the gas tank.
Do not sit on the snowmobile without
first installing the gas tank cap.

Engine Break-In

The Arctic Cat engine (when new)
requires a short break-in period before
the engine is subjected to heavy load con-
ditions.
The break-in period occurs in two stages.
Stage One occurs during the first 18 min-
utes of a new engine's run time where the
ECM provides additional oil to the
engine, along with limiting engine RPM
to 6500 RPM. Stage Two occurs after the
completion of Stage One and eliminates
the engine RPM limiter. However, Stage
Two still provides additional oil to the
engine for the remainder of 6 hours. This
additional oil is less than the amount
added during Stage One.
Premixing fuel and oil during the break
in period is not required. Due to the oil
delivery control strategy of the electronic
oil pump, the oil pump will automatically
compensate and deliver a richer fuel-oil
ratio during the engine break-in period.

Drive Belt Break-In

Drive belts require a break-in period of
25 miles (40 km). Drive the snowmobile
for 25 miles (40 km) at 3/4 throttle or
less. By revving the engine up and down
(but not exceeding 60 mph [96 km/h]),
the exposed cord on the side of a new belt
will be worn down. This will allow the
drive belt to gain its optimum flexibility
and will extend drive belt life.

NOTE: Before starting the snowmo-
bile in extremely cold temperatures,
the drive belt should be removed and
warmed up to room temperature.
Once the drive belt is at room tem-
perature, install the drive belt.
CAUTION
Never run the engine with the drive
belt removed. Excessive revving of the
engine could result in serious engine
damage and drive clutch failure.
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