Fuel System; Checking/Adding Engine Oil; Why Yamalube - Yamaha SXV4NP Operator's Manual

The longevity and safety of the snowmo-
bile can be increased by making periodic
checks of the items in the preceding
checklist.
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
storage servicing. This inspection and
servicing is at the expense of the snow-
mobile owner.

Fuel System

! WARNING
Whenever any
inspection is made on the fuel sys-
tem in which there may be fuel leak-
age, there should be no welding,
smoking, open flames, etc., in the
area.
Gasoline Additives
Fuel de-icer can be used for all models.
Periodic use of the injector cleaner is rec-
ommended especially in the last tank of
gasoline before storage. 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.
Checking/Adding
Engine Oil
The oil level may be visually checked by
looking down into the tank, or oil may be
added when the low oil indicator light
illuminates on the gauge.
maintenance or
The oil tank (when filled to the bottom of
the filler neck) has a capacity of 3.08 L (3.25
quarts). The low oil indicator light will illu-
minate when the oil level is down to 1.09 L
(1.15 quarts). If the oil level reaches 0.63 L
(0.67 quart), air can be introduced into the
oil pump cavity during vehicle operation
causing the risk of engine seizure.
1. Park the snowmobile on a level sur-
face; then remove the right-side
access panel.
2. Remove the oil tank cap and add the
appropriate oil through the filler
neck making sure to fill only to the
bottom of the filler neck.
CAUTION
Care must be taken not to over-fill the
oil tank.

Why Yamalube

YAMALUBE oil is a Genuine YAMAHA
Part born of the engineers' passion and
belief that engine oil is an important liquid
engine component. We form teams of spe-
cialists in the fields of mechanical engi-
neering, chemistry, electronics and track
testing, and have them develop the engine
together with the oil it will use. Yamalube
oils take full advantage of the base oil's
qualities and blend in the ideal balance of
additives to make sure the final oil clears
our performance standards. Thus, Yama-
lube mineral, semi synthetic and synthetic
oils have their own distinct characters and
value. Yamaha's experience gained over
many years of research and development
into oil since the 1960's helps make
Yamalube the best choice for your
Yamaha engine.
SNO-874M
25