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The longevity and safety of the snowmo-
bile can be increased by making periodic
checks of the items in the preceding check-
list.
If, at any time, abnormal noises, vibra-
tions, or improper working conditions of
any component of this snowmobile are
detected, DO NOT OPERATE THE
SNOWMOBILE. Take the snowmobile to
an authorized Yamaha Snowmobile dealer
for inspection and adjustment or repair. If
not under warranty, this service is at the
discretion and expense of the snowmobile
owner.
The snowmobile should be taken to an
authorized Yamaha Snowmobile dealer at
the end of each snowmobiling season for
general inspection and for off-season stor-
age servicing. This inspection and servic-
ing is at the expense of the snowmobile
owner.
Fuel System
Gasoline Additives
Fuel de-icer can be used for all models.
Yamaha Fuel Stabilizer should also be
added to the last tank of gasoline before
storage.
Fuel Pickup Valves
If ever there is a restricted fuel flow and a
pickup valve is suspected, take the snow-
mobile to an authorized Yamaha Snowmo-
bile dealer for this service. If not under
warranty, this service is at the discretion
and expense of the snowmobile owner.
0747-833
Checking Engine Oil Level
NOTE: The snowmobile must be
on a level surface for this procedure.
1. Start the engine and let it idle and
warm up until the engine reaches
operating temperature.
2. Shut the engine off. Remove the
right-side access panel; then look at
the oil level tube on the backside of
the oil tank. The oil should be above
the MIN line and below the MAX
line.
XM451
3. If step 1 and 2 was followed and the
oil level is not within the “MAX to
MIN” range, add the recommended
engine oil through the oil tank fill
hole.
NOTE: Care must be taken not to
over-fill the oil tank.
4. Install the oil fill plug.
Changing Engine Oil/Filter
NOTE: Recycle or properly dis-
pose of the used engine oil.
WARNING
Whenever any maintenance or
inspection is made on the fuel system
in which there may be fuel leakage,
there should be no welding, smoking,
open flames, etc., in the area.
Fuel Pickup
Valves
CAUTION
If the engine and oil are not at oper-
ating temperature the oil will not
read correctly in the oil level tube.
WARNING
Engine oil is extremely hot immedi-
ately after the engine is turned off.
Burning could occur if oil contacts
skin or clothing.
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