Evinrude E-TEC 200, Service Manual

Page: 136 / 416

134
FUEL SYSTEM
FUEL SYSTEM REQUIREMENTS
Fuel Requirements
Minimum Octane
Evinrude/Johnson outboards are certified to oper-
ate on unleaded automotive gasoline with an
octane rating equal to or higher than:
•
87 (R+M)/2 AKI, or
•
90 RON
Use unleaded gasoline that contains methyl ter-
tiary butyl ether (MTBE)
ONLY if the MTBE con-
tent does not exceed 15% by volume.
Use alcohol-extended fuels ONLY if the alcohol
content does not exceed:
•
10% ethanol by volume
•
5% methanol with 5% cosolvents by volume
When using alcohol-extended fuels, be aware of
the following:
•
The boat’s fuel system may have different
requirements regarding the use of alcohol fuels.
Refer to the boat’s owner guide.
•
Alcohol attracts and holds moisture that can
cause corrosion of metallic parts in the fuel sys-
tem.
•
Alcohol blended fuel can cause engine perfor-
mance problems.
•
All parts of the fuel system should be inspected
frequently and replaced if signs of deterioration
or fuel leakage are found. Inspect at least annu-
ally.
IMPORTANT:
Always use fresh gasoline. Gaso-
line will oxidize, resulting in loss of octane and vol-
atile compounds, as well as the production of gum
and varnish deposits which can damage the out-
board.
Additives
IMPORTANT:
The only fuel additives approved
for use in Evinrude outboards are 2+4
®
fuel condi-
tioner and Evinrude/Johnson Fuel System
Cleaner. Use of other fuel additives can result
in poor performance or engine damage.
Evinrude/Johnson 2+4 Fuel Conditioner will
help prevent gum and varnish deposits from form-
ing in fuel system components and will remove
moisture from the fuel system. It can be used con-
tinuously and should be used during any period
when the outboard is not being operated on a reg-
ular basis. Its use will reduce spark plug fouling,
fuel system icing, and fuel system component
deterioration.
Evinrude/Johnson Fuel System Cleaner will
help keep fuel injectors in optimal operating condi-
tion.
WARNING
Gasoline is extremely flammable and
highly explosive under certain conditions.
Improper handling of fuel could result in
property damage, serious injury or death.
Always turn off the outboard before fuel-
ing.
Never permit anyone other than an adult
to refill the fuel tank.
Do not fill the fuel tank all the way to the
top or fuel may overflow when it expands
due to heating by the sun.
Remove portable fuel tanks from the boat
before fueling.
Always wipe off any fuel spillage.
Do not smoke, allow open flames or
sparks, or use electrical devices such as
cellular phones in the vicinity of a fuel leak
or while fueling.