Fuel Filling - TOHATSU MFS 50A Owner's Manual

30
PRE-OPERATING PREPARATIONS
these adverse effects are caused because
the ethanol in the gasoline can absorb
moisture from the air, resulting in a separa-
tion of the water/ethanol from the gasoline
in the fuel tank.
These may cause increased:
Corrosion of metal parts
Deterioration of rubber or plastic parts
Fuel permeation through rubber fuel
lines
Starting and operating difficulties
If the use of gasoline containing alcohol is
inevitable, or presence of alcohol is sus-
pected in the gasoline, it is recommended
to add a filter that has water separating
capability, and check the fuel system for
leaks and mechanical parts for corrosion
and abnormal wear more frequently.
And, in case any of such abnormality is
found, discontinue the use of such gaso-
line and contact our dealer immediately.
If the outboard motor will only be used
infrequently, please see the remarks on
fuel deterioration in the STORAGE chapter
(P 81) for additional information.
ENOW00020-0
CAUTION
When operating a TOHATSU engine on
gasoline containing alcohol, storage of
gasoline in the fuel tank for long periods
should be avoided. Long periods of stor-
age, common to boats, create unique prob-
lems. In cars, alcohol blend fuels normally
are consumed before they can absorb
enough moisture to cause trouble, but
boats often sit idle long enough for phase
separation to take place. In addition, inter-
nal corrosion may take place during stor-
age if alcohol has washed protective oil
films from internal components.
ENOW00018-0
WARNING
Fuel leakage can cause fire or explosion,
potentially leading to severe injury or loss
of life. Every fuel system part should be
checked periodically, and especially after
long term storage, for fuel leak, change of
hardness of rubber, expansion and/or cor-
rosion of metals. In case any indication of
fuel leakage or degradation of fuel part is
found, replace relevant part immediately
before continuing operation.
ENOW00019-0
WARNING
Do not fill the fuel tank over capacity. The
rise of gasoline temperature may cause
gasoline to expand which, if overfilled, may
leak through air vent screw when it is open.
Leaking gasoline is a dangerous fire haz-
ard.
ENOM00043-A

2. Fuel filling

ENOW00028-0
DANGER
Consult an authorized dealer for details on
handling gasoline, if necessary.
Gasoline and its vapors are very flammable
and can be explosive.
When carrying a fuel tank containing gaso-
line:
Close the fuel tank cap and air vent
screw of fuel tank cap, or gasoline vapor
will be emitted through the air vent
screw, creating a fire hazard.
Do not smoke.