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Fuel System

Notice:

The procedure to prime the fuel system on

outboard engines is specific to the type and

model of engines on your boat. You should

refer to engine manufacturer owner’s manu-

al for the priming procedure for your engines.

Quad Engine Fuel Management

During normal operation with quad engines, the

port engine should be supplied fuel from the port

tank, the starboard engine supplied fuel from the

starboard tank. The starboard mid and port mid

engines should be supplied fuel by the center tank.

This configuration will keep the boat properly bal

anced and reduce the possibility of fuel supply

problems. It also ensures that enough fuel will

cycle through each tank to reduce the possibility

of fuel degradation in one of the tanks.

You should avoid selecting the port or starboard

tank for the center engines during normal opera-

tion. If not done correctly for both center engines,

this could cause the boat to become improperly

balanced, which will affect the handling and safe

operation of the boat. Only select the port or

starboard tank for the center engines when there

is a fuel supply problem in the center tank.

If contamination or a fuel delivery problem occurs

in one of the tanks and emergency fuel tank selec-

tions are necessary, it is important to be conscious

of weight and balance and manage the fuel tank

selections to keep the boat properly balanced

whenever possible.

If a fuel supply problem occurs in the port or star-

board tank, all three engines should be switched

to the center tank first. When the fuel level in

the center tank drops below 1/3, one port/star-

board engine and one center engine can be left

on the center tank and the other center engine

and port/starboard engine can be switched to the

other good tank. The idea is to keep the boat

properly balanced as long as possible. If all four

engines are run from the center tank and the port

or starboard fuel tank, the trim tabs will need to

be adjusted as necessary to compensate for list-

ing and maintain a level running attitude as fuel

is consumed.

CAUTION

W H E N   E M E R G E N C Y  F U E L  TA N K   S E L E C T I O N S  A R E
NECESSARY, PAY ATTENTION TO THE FUEL LEVEL IN
THE CENTER TANK AND SWITCH ONE PORT/STARBOARD
AND CENTER ENGINE TO THE OTHER GOOD TANK AND
LEAVE ONE PORT/STARBOARD AND CENTER ENGINE ON
THE CENTER TANK WHEN THE FUEL LEVEL IN REACHES
1/3.  THIS WILL PROVIDE ADDITIONAL RUN TIME FOR THE
THE ENGINES.  CONSIDER SHUTTING DOWN ONE CENTER
ENGINE IF THE FUEL SUPPLY BECOMES MARGINAL.

WHEN ENGINES RUN OUT OF FUEL THEY WILL SHUT
DOWN SUDDENLY AND YOU WILL LOOSE THE ABILITY TO
CONTROL THE POSITION OF THE BOAT FOR SEVERAL
MINUTES WHILE THE FUEL SYSTEM IS PRIMED SO THE
ENGINES CAN BE RESTARTED. THIS COULD ENDANGER
THE BOAT AND CREW IN ROUGH SEAS, AN INLET OR A
BUSY WATERWAY. ALWAYS MAKE SURE TO RETURN THE
SELECTOR VALVES TO THE NORMAL POSITION WHEN THE
FUEL SUPPLY PROBLEM IS CORRECTED.

Notice:

The procedure to prime the fuel system on

outboard engines is specific to the type and

model of engines on your boat. You should

refer to engine manufacturer owner’s manu-

al for the priming procedure for your engines.

5.3 Diesel Generator Fuel System

The diesel fuel system for the generator is com-

pletely separate from the gasoline system. The

diesel fuel tank is located in the stern bilge below the

cockpit and is filled from a fuel fill deck plate on the

starboard gunnel labeled “Diesel.” The diesel fuel