properly dispose of gasoline-
soaked rags.
Avoid overfilling the fuel tank.
Stop filling when the fuel level
just reaches the bottom of the
filler tube. Do not fill up the filler
tube because fuel expands as it
warms up and could overflow.
Tighten the filler cap securely
after refueling.
If you should swallow some
gasoline, inhale a lot of gasoline
vapor, or get gasoline in your
eyes, get immediate medical
attention.
If any gasoline spills onto your
skin, immediately
wash with soap and
water. Change clothing if gaso-
line spills on it.
Use only fresh gasoline that has
been stored in clean containers.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that contain-
ing methanol. Gasohol containing
ethanol can be used if ethanol content
does not exceed 10% and the fuel
meets minimum octane ratings.
Gasohol containing methanol is not
recommended by Yamaha because it
can cause fuel system damage or
engine performance problems.
Ring Free Fuel Additive
Gasoline is a precise blend of many dif-
ferent substances, each chosen to give
certain characteristics. Gasoline blends
have been changing in recent years in
response to concerns about pollution
and resulting emissions regulations.
One of the most obvious changes has
been the elimination of lead from fuels.
As gasoline has changed, the amount
of additives such as aromatics and oxy-
genates has increased. These addi-
tives are important for the engines in
passenger cars, but they can have
detrimental effects in marine engines,
particularly 2-stroke engines, because
of increased deposits in the combus-
tion chamber. When
enough deposits col-
lect, piston rings begin sticking.
Performance drops and engine wear
increases dramatically.
While many additives available may
reduce deposits, Yamaha recommends
the use of Ring Free Fuel Additive,
available from your Yamaha dealer.
Ring Free has repeatedly proven its
ability to clean combustion deposits
from inside the engine, notably in the
critical piston-ring-land area, and fuel
system components. Follow product
labeling for use instructions.
OPERATION 3
3-7
FUEL AND
OIL
GASOLINE
Use regular unleaded 87 octane (R+M
÷ 2) gasoline.
GASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLO-
SIVE!
Do not smoke when refueling,
and keep away from sparks,
flames, or other sources of igni-
tion.
Stop engines and turn ignition
keys to Off before refueling.
Refuel in a well-ventilated area. If
the Sport Boat is in the water, be
sure it is securely moored to the
fueling dock. All passengers
must be out of the boat during
refueling.
Take care not to spill gasoline. If
gasoline spills, wipe it up imme-
diately with dry rags. Always
3 OPERATION
3-6
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