21
BOAT RIGGING
FUEL SYSTEM REQUIREMENTS
1
Fuel System Primer
Outboards re quire a priming system to refill the
fuel system after periods of non-u se. The mo st
common priming syste m is a primer bu lb in the
fuel supply hose.
Install the primer bulb as follows:
• The primer bulb must meet the same Fuel Flow
Requirements as the fuel hose.
• The primer bulb should be easily accessible.
• The arrow o n the primer bulb must point in the
direction of fuel flow.
• The fuel supply hose must allow the primer bulb
to b e held with the arrow pointing up during
priming.
An alternative to a pr imer bulb is a U. S. Coast
Guard ap proved marine primer pu mp. Electric
primer pu mps of fer the co nvenience of outbo ard
priming from a dash-mounted momentary switch.
Fuel Filters
Boat-mounted fuel filters and water-sep arating
fuel filter a ssemblies must meet the required fu el
flow and filter specificatio n. Refer to Fuel Flow
Requirements.
The filter mu st be mou nted to a rigid surface
above the full level of the fuel tank and accessible
for servicing.
Fuel Filter Assembly , P/N 174176, me ets all
requirements for a water-separating fuel filter.
Avoid using in-line fuel filters exter-
nal to the outboard. The filter area and flow
characteristics may not be adequate for high
horsepower outboards.
1. Arrow indicates direction of fuel flow 000124
174176
Typical Fuel Supply Configuration
1. Primer bulb
2. Water separating fuel filter
3. Anti-siphon valve, in fuel pick-up of tank
DRC6797
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