Honda BF4.5B - 7 Starting the Engine; Fuel Tank and Vent Knob

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Fuel Tank and Vent Knob
STARTING THE ENGINE7.
VENT KNOB
O
O
P
P
E
E
N
N
C
C
L
L
O
O
S
S
E
E
The fuel tank must be properly
secured in the boat. This will protect
the fuel tank from mechanical
damage caused by the fuel tank
shifting.
Due to the fuel pump capacity, do
not place the fuel tank more than 2
meters (6.6 feet) away from the
motor or lower than 1 meter (3.3
feet) below the outboard motor end
fuel hose connector.
The fuel tank must be in a well-
ventilated area to reduce the chance
of a gasoline vapor explosion. Avoid
direct sunlight on the fuel tank.
Open the fuel tank vent by turning
the vent knob at least 2 or 3 turns
counterclockwis e. Allow the air
pressure inside the fuel tank to
equalize with the outside air. With
the vent open, air can enter the fuel
tank to displace the fuel as the fuel
level goes down.
Remove the fuel cap and inspect
the condition of the fuel cap and
gasket. Replace the fuel cap or
gasket if they are cracked,
damaged or leak fuel.
1.
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