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SportsBoat_F5K12.book Page 89 Monday, July 4, 2022 11:40 AM

Operation and handling requirements

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

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.

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