Engine Break-In - Arctic Cat BEARCAT F5 Operator's Manual

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.
Break-In Gas/Oil Mixing
Instructions (F5/570 cc)
Before mixing gasoline and oil, make sure
the oil is at room temperature (20° C/68°
F). Use a U.L. approved 22.7 l (6 U.S. gal.)
gasoline container for mixing the gasoline
and oil. To properly mix the fuel at a 100:1
ratio, use the following procedure:
CAUTION
Never mix oil and gasoline in the
snowmobile gas tank.
1. Pour gasoline into the gasoline con-
tainer until approximately half full.
2. Pour 236 ml (8 fl oz) of the recom-
mended 2-cycle oil into the gasoline
container.
3. Install cap on gasoline container and
shake the mixture vigorously.
4. Fill the gasoline container with gaso-
line; then cap the gasoline container
and shake the mixture vigorously.
5. Using a fine-mesh screened funnel,
pour the fuel mixture from the gasoline
container into the snowmobile gas tank.
6
! WARNING
Always fill the gas tank in a well-ven-
tilated area. Never add gasoline to the
snowmobile gas tank near any open
flames or with the engine running. DO
NOT SMOKE while mixing fuel or fill-
ing the gas tank.

Engine Break-In

The Arctic Cat engine (when new or
rebuilt) requires a short break-in period
before the engine is subjected to heavy
load conditions.
F5/570 cc
Arctic Cat requires that the first tankful
of fuel be premixed at a 100:1 ratio in all
oil-injection models.
During the break-in period, a maximum
of 1/2 throttle is recommended; however,
brief full-throttle accelerations and varia-
tions in driving speeds contribute to good
engine break-in. After one (1) tankful
break-in period, the snowmobile may be
taken to an authorized Arctic Cat Snow-
mobile dealer for a checkup. This
checkup is at the discretion and the
expense of the snowmobile owner.
CAUTION
DO NOT exceed the one (1) tankful limi-
tation of a 100:1 gas/oil break-in mix-
ture. Continuous use of a gas/oil
mixture, unless consistently operating
in extremely cold conditions (-26°C/-
15°F or colder), could cause spark plug
fouling and excessive carbon buildup. A
100:1 gas/oil mixture must be used in
conjunction with the oil-injection sys-
tem to ensure adequate engine lubrica-
tion in extremely cold conditions.
1100 cc
This engine does not require any pre-
mixed fuel during the break-in period.
CAUTION
DO NOT use premixed fuel in the
snowmobile gas tank. Engine dam-
age will occur.