Yamaha F25 - Manual (Page 25)

Operation
20
with oil if it is below the lower mark, or
drain to the specified level if it is above
the upper mark.
EMU30850
Filling fuel for built-in tank
WARNING
EWM00060
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other sourc-
es of ignition.
1. With the outboard motor tilted down (in
the vertical running position), remove the
fuel tank cap.
2. Use a funnel if the nozzle on the fuel can
or pump is not small enough or long
enough to fit into the mouth of the fuel
tank.
3. Fill the fuel tank carefully.
4. Securely close the cap 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 char-
acteristics. Gasoline blends have been
changing in recent years in response to con-
cerns about pollution and resulting emissions
regulations. One of the most obvious changes
has been the elimination of lead from most fu-
els.
As gasoline has changed, the amount of addi-
tives such as aromatics and oxygenates has
increased. These additives are important for
the engines in passenger cars, but they can
have detrimental effects in marine engines,
because of increased deposits in the combus-
tion chamber. When enough deposits collect,
piston rings begin sticking. Performance
drops and engine wear increases dramatical-
ly.
While many additives available may reduce
deposits, Yamaha recommends the use of
Ring Free Fuel Additive, available from your
Yamaha dealer. Ring Free Fuel Additive
has repeatedly proven its ability to clean com-
bustion deposits from inside the engine, nota-
bly the critical piston-ring-land area, and fuel
system components. Follow product labeling
for use instructions.
1. Oil level check window
1. Lower level mark
2. Upper level mark
Fuel tank capacity:
0.9 L (0.24 US gal) (0.20 Imp.gal)
U69M15E0.book Page 20 Wednesday, April 5, 2006 4:48 PM