INSTALLATION AND PREDELIVERY
BOAT RIGGING
Fuel System Requirements
Overview
Fuel systems must meet the minimum specifica-
tions. These requirements must
be
met to insure
the proper delivery of fuel to the outboard.
The guidelines established by the
ABYC and U.S.
Coast
Guard should always
be
followed.
• Permanent fuel tanks must
be
properly vented
outside of the hull.
• Remote fuel tank gas fills must
be
grounded.
• Permanent fuel tank pickups should have the
• The fuel primer bulb must
be
positioned
in
the
fuel supply hose
so
the primer bulb can be held
with the arrow pointing
"up" during priming.
:.....-_--1
correct anti-siphon valve installed to prevent 1. Arrow indicates direction
of
fuel flow
000124
fuel flow if a leak occurs
in
the fuel distribution
system. Refer to
ABYC Standard H-24. Fuel Filters
Fuel
Hose
All fuel hoses must
be
designated as fuel hose
and approved for marine use.
• Use only fuel lines (or copper tubing) that meet
the outboard minimum
1.0.
requirement.
• "USCG Type A
1"
fuel hose must
be
used
between permanent fuel tanks and motor well
fittings on inaccessible routings.
• Use "USCG Type
B1"
for fuel hose routings
in
motor well areas.
• Use corrosion-resistant metal clamps
on
perma-
nently installed fuel hoses routed below decks.
• Multi-outboard applications require separate
fuel tank pickups.
Install separate fuel hoses
from the fuel tank to the outboards
in
multi-out-
board applications.
Fuel System Primer
Outboards require a priming system capable
of
refilling the fuel system after periods of non-use.
Primer Bulbs
Primer bulbs that meet the outboard's minimum
inside diameter fuel line requirements are used
on
most outboards.
Install the primer bulb
in
the fuel supply hose as
follows:
• The primer bulb should
be
installed
in
an
acces-
sible location.
• The arrow
on
the primer bulb must point
in
the
direction
of
fuel flow.
30
Boat-mounted fuel filters and water-separating
fuel filter assemblies must meet the required fuel
flow and filter specification. The filter must
be
mounted to a rigid surface above the "full" level of
the fuel tank and accessible for servicing.
The
EvinrudelJohnson Fuel Filter Assembly,
PIN
174176, meets all requirements for a water-
separating fuel filter.
0070
1 2
Typical Fuel
Supply
Configuration
001151
1. Primer bulb
2. Fuel filter (optional)
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