Yamaha MM600D, Manual

Page: 67 / 282

MAINTENANCE AND TUNE-UP 61
is being mixed or while
the machine. have a
rated for gasoline and electrical
within reach when refueling or
ing any part of system.
Proper Fuel Selection
The two-stroke engines used in
are lubricated by oil that circulates through the crankcase
and
into the chamber with the
The oil is burned the fuel expelled through
exhaust. The various components engine are lubri-
cated by the oil as it clings to the various parts as it passes
the crankcase and cylinders. All models are
equipped with an oil injection oil with
the
is
not required on any of the models covered
this manual except during engine break-in. See
in this chapter.
using gasoline with a minimum
octane rating of
of gasoline var-
ies area to area. Consult
gaso-
line
Engine Tank
An oil injection system is used on all models. During
engine operation, is injected into the en-
gine at a variable ratio depending on engine rpm.
Check the oil level in the reservoir tank (Figure I) daily
and each time gasoline is added to the tank.
The oil tank is equipped with an sensor that is
connected to the injection oil level pilot lamp on the in-
strument panel. When the oil level in the
tank reaches a
specified low point, the pilot lights, Add oil as soon
as possible when the low oil pilot light comes on.
the oil level is low, the following.
Open the hood.
2. Remove the oil tank cap (Figure I) and pour in the
required amount of Yamalube 2-cycle Oil or equivalent.
Fill the tank until the oil level is up to the
mark on the
transparent tank.
3. Reinstall the fill cap and close the hood.
Chaincase Oil
Oil in the chain housing lubricates the chain and
sprockets. The recommended oil is classified API
gear oil with a
rating of 75 or
types or brands often vary slightly in their composition
and a mixture of any of them may not lubricate as well as
one type or brand alone. Always
to use one type and
brand of oil.
The chain housing oil level is checked with the dipstick
(A, Figure 2).
the snowmobile on a level surface. Open the
shroud.
2.
Pull out the dipstick (A, Figure 2) from the chainease.
the dipstick off and insert it back into the
When reading the oil level on the
note side is
REVERSE and the opposite is marked
3). Read the oil level on the
side that correlates to the
nu reverse gear or with reverse
3. the dipstick out of the chaincase and cheek the oil
level on the dipstick (Figure The oil level should be
between the upper and lower arrow marks on the dipstick.
4.
If the oil level is low, add chaincase oil. Do not
Recheck the oil level.
Reinstall the dipstick. Make the circular handle on
the dipstick fits around the projection on the chaincase
to prevent accidental removal.
Change the oil once year or every 2000
miles. The suggests draining and filling