Engine Oil Requirements; Fuel Requirements; Gasoline; Muddy Or Acidic Water - Yamaha F25A Owner's Manual

Specifications and requirements
EMU37471

Engine oil requirements

Recommended engine oil:
4-stroke motor oil with a combination
of the following SAE and API oil classi-
fications
Engine oil type SAE:
10W-30 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Engine oil quantity without replacement
of oil filter (Oil pan capacity):
F25AEHT 1.7 L (1.80 US qt, 1.50
Imp.qt)
F25AET 1.7 L (1.80 US qt, 1.50 Imp.qt)
F25AMH 1.7 L (1.80 US qt,
1.50 Imp.qt)
F25CMH 1.7 L (1.80 US qt,
1.50 Imp.qt)
FT25BET 1.9 L (2.01 US qt,
1.67 Imp.qt)
If the recommended engine oil grades are
not available, select an alternative from the
following chart according to the average
temperatures in your area.
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EMU36360

Fuel requirements

EMU36770

Gasoline

Use a good quality gasoline that meets the
minimum octane rating. If knocking or ping-
ing occurs, use a different brand of gasoline
or premium unleaded fuel. Yamaha re-
comends that you use alcohol-free (see
Gasohol) gasoline whenever possible.
Recommended gasoline:
Regular unleaded gasoline
ECM01980
NOTICE
Do not use leaded gasoline. Leaded
●
gasoline can seriously damage the en-
gine.
Avoid getting water and contaminants
●
in the fuel tank. Contaminated fuel can
cause poor performance or engine
damage. Use only fresh gasoline that
has been stored in clean containers.
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% etha-
nol can cause fuel system damage or cause
engine starting and running problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage or engine performance
problems.
EMU36880

Muddy or acidic water

Yamaha strongly recommends that you have
your dealer install the optional chromium-
plated water pump kit if you use the outboard