Gasoline Fuel Systems - Four winns SL Series Owner's Manual

I - 1

GASOLINE FUEL SYSTEMS

Gasoline fuel systems used in Four Winns
designed to meet or exceed the requirements of the
US Coast Guard, the National Marine Manufacturers
Association, and the American Boat and Yacht
Council in effect at the time of manu fac ture.
Fuel tanks on Four Winns
of the aft bilge compartment below the floor. Please
visit our website at www.fourwinns.com for fuel tank
capacities.
NOTICE
Use only clean fuel of the type and grade
recom mend ed by the engine manu factur er.
Engine damage resulting from the use of a
lower octane gasoline is consid ered 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
specifi cations.
A. System Testing
All gasoline fuel systems have been factory in spected
and pressure tested in accordance with regulations in
effect at the time of manufacture. Additionally, each
fuel tank must pass rigid tests and inspections per-
formed by the fuel tank manu facturer.
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 deal er's perfor mance of this
service.
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 addi-
tional infor ma tion.
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
®
boats are
®
boats are locat ed forward
the amount of fuel spill age. Always open the lid slowly
to allow air to escape. See Figure I1.
Figure I1: Fuel Fill
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 sur faces to run into the tank.
Periodically inspect the gasket and the fuel deck plate
for damage.
DO NOT confuse GAS deck fill plate with
WA TER or WASTE deck plates. Deck fill plates
are labeled according to the in tend ed use.
Spilled fuel is a fire haz ard. DO NOT ove rfill
or ove rflow the tank, or al low fuel spills into
the hull or bilge. If spill age oc curs, clean up
im me di ately and dis pose of soiled rags/towels
in a pro per con tain er.
NOTICE
When fueling at a marina, DO NOT over fill.
Fuel may spill into the water.
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
logos.
Fuel Systems
Check Valve prevents
spills from fuel surge.
Baffles allow air ventilation
but trap water
Splash Shield sends overflow
from vent back to tank
Owner's Manual Page 73