I - 1
GASOLINE FUEL SYSTEMS
the amount of fuel spillage. Always open the lid slowly
to allow air to escape. See Figure I-1.
Gasoline fuel systems used in Four Winns boats are
designed to meet or exceed the requirements of the
U.S. Coast Guard, the National Marine Manufacturers
Association, and the American Boat and Yacht
Council in effect at the time of manufacture.
Check Valve prevents
spills from fuel surge.
Bafﬂes allow air ventilation
but trap water
Tanks on Four Winns
boats are located forward of
Splash Shield sends overﬂow
from vent back to tank
the aft bilge compartment below the ﬂoor. Please see
speciﬁcations included in your owner’s packet for fuel
tank capacities or visit our website at:
Figure I-1: Fuel Fill
Use only clean fuel of the type and grade
recommended by the engine manufacturer.
Engine damage resulting from the use of a
lower octane gasoline is considered misuse
of the engine and will void the engine warranty.
Refer to the section on Gasoline Requirements
in the engine manual for information on octane
The gasket seal on the fuel ﬁll cap assists in seal ing
when closed. A missing or damaged gasket can allow
water on the surrounding surfaces to run into the tank.
Periodically inspect the gasket and the fuel deck plate
DO NOT confuse GAS deck ﬁll plate with
WATER or WASTE deck plates. Deck ﬁll plates
are labeled according to the intended use.
A. System Testing
All gasoline fuel systems have been factory inspected
and pressure tested in accordance with regulations
in effect at the time of manufacture. Additionally,
each fuel tank must pass rigid tests and inspections
performed by the fuel tank manufacturer.
Spilled fuel is a ﬁre hazard. DO NOT overﬁll
or overﬂow the tank, or allow fuel spills into
the hull or bilge. If spillage occurs, clean up
immediately and dispose of soiled rags/towels
in a proper container.
Prior to taking delivery, it is important that a full in-
spection be made of the entire fuel system by the sell-
ing dealer. An entry on the Four Winns® Pre-Delivery
Inspection Form portion of the Warranty Registration
Card will attest to the dealer’s performance of this
When fueling at a marina, DO NOT overﬁll.
Fuel may spill into the water.
B. Fuel Fills
Fuel ﬁll deck plates are located either on the aft deck
or side decks, and are marked “GAS”. To open, insert
the deck plate key into the holes on the cap and rotate
counterclockwise. A bead chain connects the cap to
body to help prevent loss overboard. Be sure to utilize
the proper type and grade of fuel as recommended by
the engine manufacturer. See Section I-2 for
Avoid overboard spills. When tank is almost full
the sound from the fuel vent will change. The
pitch will become higher indicating the tank is
close to being full. Stop pumping fuel into tank.
DO NOT TOP OFF.
After fueling, replace the ﬁll cap, and wash the areas
around the fuel ﬁll plate. Residual fuel left on the deck
and hull sides can be dangerous, and will yellow the
ﬁber glass. It will also damage the tape stripes and
The fuel ﬁll ﬁtting allows for venting below the ﬁll cap.
While the tank is being ﬁlled, the air dis placed by the
fuel es capes through the fuel ﬁll/vent. This reduces
Fuel Systems - Section I
Owner’s Manual Page 72
|Categories||Four Winns F-Series Manuals, Four Winns Manuals|
|Tags||Four Winns F|
|Document Type||Owner's Manual|
|Product Brand||Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx|
|Document File Type|
|Wikipedia's Page||Outboard Marine Corporation|
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