Fuel Delivery System - Mercury SKI Instruction Manual

GASOLINE ENGINES SKI MODELS

Fuel Delivery System

Boating standards (NMMA, ABYC, etc.) and Coast Guard regulations must be ad-
hered to when installing fuel delivery system.
GENERAL
The main concern of a boat's fuel system is safety; this must be achieved through a techni-
cally sound installation and constant inspection.
The fuel system, from the filler pipe to the fuel pump, is the same in principle for all boats.
The fuel tank is an integrated component of the boat. Refer to the special information on
service and maintenance that you have received from the tank manufacturer.
NOTE: On Ski Boat Applications: If during testing for a particular application, you experi-
ence fuel starvation in sharp high speed turns, baffles or a fuel sump may be needed in the
tank to help correct this condition.
Only a few points related to function and safety are listed here. Refer to boating standards
(NMMA, ABYC, etc.) and Coast Guard regulations for complete guidelines:
•
All connections should be on the upper side of the tank.
•
The drain plug at the lowest point on the tank serves to permit the removal of water and
sediment.
•
The filler pipe outer diameter should be at least 2 in. (51 mm).
•
The tank breather pipe must have an inner diameter of at least 1/2 in. (13 mm) and must
be fitted with a swan neck to prevent water from entering the tank.
It is recommended that the exact route and length of the fuel lines be established at the first
installation of the engine to prevent problems later in connecting them to the engine.
All fuel lines must be well secured. The holes where the lines run through the bulkheads
should be carefully rounded off or protected with rubber grommets. This prevents damage
to the lines from abrasion.
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WARNING
INDEX