Operation
26
3. Watch for oil flowing through the oil feed
pipes. After any air in the oil lines has
been expelled, the oil injection system
should supply oil normally. If no oil is
flowing after 10 minutes of idling, consult
your Yamaha dealer.
CAUTION:
ECM00130
Be sure to take the above steps when op-
erating the engine after a long period of
storage. Otherwise engine seizure could
occur.
EMU27233
Filling fuel and engine oil
EMU27242
Filling fuel for portable tank
WARNING
EWM00060
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other
sources of ignition.
1. Remove the fuel tank cap.
2. Fill the fuel tank carefully.
3. Close the cap securely after refueling.
Wipe up any spilled fuel.
EMU27270
Ring Free Fuel Additive
Gasoline is a precise blend of many different
substances, each chosen to give certain
characteristics. Gasoline blends have been
changing in recent years in response to con-
cerns about pollution and resulting emis-
sions regulations. One of the most obvious
changes has been the elimination of lead
from most fuels.
As gasoline has changed, the amount of ad-
ditives such as aromatics and oxygenates
has increased. These additives are impor-
tant for the engines in passenger cars, but
they can have detrimental effects in marine
engines, because of increased deposits in
the combustion chamber. When enough de-
posits collect, piston rings begin sticking.
Performance drops and engine wear in-
creases dramatically.
While many additives available may reduce
deposits, Yamaha recommends the use of
Ring Free Fuel Additive
, available from
your Yamaha dealer.
Ring Free Fuel Addi-
tive
has repeatedly proven its ability to clean
combustion deposits from inside the engine,
notably the critical piston-ring-land area, and
fuel system components. Follow product la-
beling for use instructions.
EMU27311
Filling oil for electric start models
WARNING
EWM00530
Do not add gasoline into the oil tank. Fire
or explosion could result.
This engine uses the Yamaha oil injection
system, which provides superior lubrication
by ensuring the proper oil ratio for all operat-
ing conditions. No fuel premixing is needed.
Simply pour gasoline into the fuel tank and
oil into the oil tank. Convenient indicator seg-
Fuel tank capacity (if equipped Yamaha
fuel tank):
24 L (6.34 US gal) (5.28 Imp.gal)
ZMU03367
©2019 Yamaha Motor Corporation, U.S.A.
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