Fitting Location
90-824052R3 JUNE 2002 FUEL SYSTEMS - 3B-25
Reed Valve Leak Test
TOOLS NEEDED FOR TEST--
a) Fuel Pressure Gauge (0 to 15 psi)
b) Hose (approx. 3 ft. x 1/8 in. ID), Same Diameter as
Bleed Hoses.
1. Remove engine cowling.
2. Place outboard in water, start and allow to warm
up.
NOTE: To gain access to cylinder #5 bleed fitting
remove throttle cam from throttle linkage. Refer to
“Carburetor Removal/lnstallation” for cam removal
and installation.
3. Remove and plug bleed hoses (one at a time)
from crankcase cover and connect fuel pressure
gauge as shown.
4. With engine at idle, a reading of 3 to 6 psi must
be attained. If reading falls below 3 psi inspect
reed valves. Refer to induction manifold
disassembly in Powerhead Section 4 of service
manual. Replace reed valves or check valves as
required.
NOTE: Check valve is functioning if air flows in one
direction as shown.
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