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.
The fuel withdrawals are positioned in the fuel
tanks to achieve optimum fuel usage, and fuel
line routing. At certain speeds and hull trim
angles, the fuel supply at the withdrawal tank
location can increase or decrease accord-
ingly. Be extremely careful when attempting to
operate the boat on a minimum amount of fuel.
Though some fuel may be in the tank, the rela-
tive trim angle of the boat may cause the fuel
to flow away from the withdrawal.
NOTICE
When fueling at a marina, DO NOT overfill.
Fuel may spill into the water.
NOTICE
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.
Access plates or lids are provided in the floor
for easier access to the fuel pick-up, anti-sy-
phon valve and sender.
D. Fuel Gauge
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
fiberglass. It will also damage the tape stripes and
logos.
The fuel gauge indicates the amount of fuel in the
tank. See Section E-6F - Fuel Gauge (4-in-1-Gauge)
for additional information on fuel gauge use.
E. Fuel Senders
C. Anti-Syphon Valves
The fuel sender consists of a float which travels up
and down a stationary tube. The float measures the
level of the fuel in the tank and sends a signal to the
fuel gauge. See Figure I-3.
The fuel withdrawal line is equipped with an anti-
syphon valve where the line attaches to the fuel tank.
This valve prevents gasoline from syphoning out of
the fuel tank should a line rupture. See Figure I-2 for
anti-syphon location.
Figure I-3: Fuel Sender Operation
Due to the mechanical nature of the fuel sender,
variations in readings during various speeds of
operation may occur. This system is merely a relative
indication of the available fuel supply and not a
calibrated instrument. With this type of sending unit
a more accurate measurement of fuel level is obtained
with the boat in a level position.
The gauge readings will also vary with the trim angle
of the boat. When sitting at a dock and the boat is
nearly level, the fuel gauge will register accurately.
Refer to Figure I-3. When boating, the trim angle of
the boat changes and affects the gauge readings.
Under these conditions, the fuel sender will register
“full” for the first few hours of running time until the fuel
Figure I-2: Fuel Tank Fittings
Fuel Systems - Section I
Owner’s Manual Page
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Vista 258, Four Winns Vista 278 |
| Model Year | 2005, 2006, 2007, 2008 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx |
| Document File Type | |
| Publisher | fourwinns.com |
| Wikipedia's Page | Outboard Marine Corporation |
| Copyright | Attribution Non-commercial |
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