Fuel Requirements; Gasoline; Muddy Or Acidic Water - Yamaha F150A Owner's Manual

EMU36360

Fuel requirements

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Gasoline

F150A, FL150A
Use a good quality gasoline that meets the
minimum octane rating. If knocking or pinging
occurs, use a different brand of gasoline or
premium unleaded fuel. Yamaha recom-
mends that you use alcohol-free (see Gaso-
hol) gasoline whenever possible.
Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of 90 (Re-
search Octane Number).
ECM01981
NOTICE
Do not use leaded gasoline. Leaded gas-
G
oline can seriously damage the engine.
Avoid getting water and contaminants in
G
the fuel tank. Contaminated fuel can
cause poor performance or engine dam-
age. Use only fresh gasoline that has
been stored in clean containers.
Specifications and requirements
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol (E10) and that containing
methanol. Ethanol can be used if the ethanol
content does not exceed 10% and the fuel
meets the minimum octane ratings. All etha-
nol blends containing more than 10% ethanol
can cause fuel system damage or cause en-
gine starting and running problems. Yamaha
does not recommend gasohol containing
methanol because it can cause fuel system
damage or engine performance problems.
F150B, FL150B
Use a good quality gasoline that meets the
minimum octane rating. If knocking or pinging
occurs, use a different brand of gasoline or
premium unleaded fuel.
ECM01981
NOTICE
G
G
EMU36880
Yamaha strongly recommends that you have
your dealer install the optional chromium-plat-
ed water pump kit if you use the outboard mo-
tor in muddy or acidic water conditions.
However, depending on the model it might not
be required.
Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of 84 (Re-
search Octane Number).
Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.
Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance or engine dam-
age. Use only fresh gasoline that has
been stored in clean containers.

Muddy or acidic water

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