79
Operation and handling requirements
Fuel requirement
Fuel
WARNING
Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and
explosions and to reduce the risk of in-
jury when refueling, follow these in-
structions.
Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline, inhale a
lot of gasoline vapor, or get some gaso-
line in your eyes, see your doctor imme-
diately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
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 and engine
damage. Use only fresh gasoline that
has been stored in clean containers.
AR195/SX195: Use only gasoline with a
minimum pump octane number of 91 or
a minimum research octane number of
95. Low-octane gasoline can seriously
damage the engine.
AR190/SX190
AR195/SX195
Your Yamaha engine has been designed to
use premium unleaded gasoline with a pump
octane number [(R+M)/2] of 91 or higher, or a
research octane number of 95 or higher. If
knocking (or pinging) occurs, use a gasoline
of a different brand.
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and
the fuel meets minimum octane ratings. E-85
is a fuel blend containing 85% ethanol and
therefore must not be used in this boat. All
ethanol blends containing more than 10%
ethanol can cause fuel system damage or en-
gine performance problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage and engine performance
problems.
To fill the fuel tank:
(1) Before refueling, turn off the engine. Nev-
er refuel while smoking, or while in the vi-
cinity of sparks, open flames, or other
sources of ignition.
(2) Refuel the boat in a well-ventilated area.
If the boat is in the water, be sure it is se-
curely moored to the fueling dock. All
passengers must be out of the boat dur-
ing refueling.
(3) Press the fuel tank filler cap button, and
then open the fuel tank filler cap.
Recommended fuel:
Regular unleaded gasoline with a
minimum octane rating of 86
(Pump octane number) = (R + M)/2
90 (Research octane number)
Recommended fuel:
Premium unleaded gasoline with a
minimum octane rating of 91
(Pump octane number) = (R + M)/2
95 (Research octane number)
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