143
Fuel System
Fuel System Tests
7
Fuel System Tests
Fuel System Pressure Test
Relieve fuel system pressure. See
After relieving fuel system pressure, install a 0 to
60 psi (0 to 415 kPa) Fuel Pressure Gauge,
P/N 5007100 or equivalent, to the upper fuel pres-
sure test fitting.
START outboard and check pressure. System
pressure should be 20 to 35 psi (138 to 241 kPa).
Shut OFF outboard. Monitor pressure gauge.
Pressure should not drop below 15 psi (103 kPa).
IMPORTANT:
If outboard does not run, prime
fuel system and crank outboard; check circulation
pump operation; check fuel system pressure.
Results:
Normal pressure
•
Observe pressure reading after outboard is shut
OFF.
•
Refer to
Pressure drops after outboard is shut OFF:
•
Check for leaking fuel injector.
•
Check for leaking pressure regulator.
•
Check for external fuel system leak.
High pressure:
•
Check for restricted filter or fuel return fitting of
vapor separator, damaged pressure regulator in
vapor separator, or restricted fuel return mani-
fold.
Low pressure
•
Check fuel supply to fuel lift pump. Refer to
on p. 146. Higher vacuum
readings indicate restrictions in the fuel supply.
Repair or replace as needed.
•
Restricted fuel filter/water separator assembly.
•
Lift pump not supplying adequate fuel to vapor
separator. Refer to
•
If the above tests are good and vapor separator
remains full of fuel, check for damaged circula-
tion pump. Replace vapor separator assembly.
No pressure
•
Check electrical circuit and ground connections
for circulation pump.
•
If voltage is present and pump does not run,
repair connection or replace vapor separator
assembly.
Relieve fuel system pressure before removing fuel
pressure gauge. Refer to
Pressure Regulator Test
remove vapor separator.
Make sure filter is not clogged. Clean or replace
as needed.
WARNING
Use caution when working on any pressur-
ized fuel system. Wear safety glasses and
work in a well ventilated area. Extinguish all
smoking materials and make certain no open
flames or ignition sources exist. Before start-
ing any fuel system service, carefully relieve
fuel system pressure. Failure to properly
relieve fuel system pressure can result in
spraying fuel and/or excessive fuel spillage
during servicing. Fuel is flammable and can
be explosive under certain conditions.
WARNING
Protect against hazardous fuel spray. Before
starting any fuel system service, carefully
relieve fuel system pressure.
1.
Fuel pressure gauge
2.
Test fitting
004324
1
2
Summary of Contents for EVINRUDE E-TEC BE225HGXABA
Page 163: ...Oiling System Oil Supply Diagrams 163 8 008208R Port Side View Starboard Side View ...
Page 165: ...Oiling System Oil Supply Diagrams 165 8 008432R Port Side View Starboard Side View ...
Page 167: ...Oiling System Oil Recirculation Diagrams 167 8 008207R Starboard View Port View ...
Page 251: ...Powerhead Powerhead Views 251 11 Powerhead Views Port Hose Routings 3 3 L models 007153 ...
Page 252: ...252 Powerhead Powerhead Views Starboard Hose Routings 3 3 L models 007154 ...
Page 253: ...Powerhead Powerhead Views 253 11 Port Hose Routings 3 4 L models 008503 ...
Page 254: ...254 Powerhead Powerhead Views Starboard Hose Routings 3 4 L models 008502 ...
Page 255: ...Powerhead Powerhead Views 255 11 Port 3 3 L models 008448 ...
Page 256: ...256 Powerhead Powerhead Views Starboard 3 3 L models 008449 ...
Page 257: ...Powerhead Powerhead Views 257 11 Port 3 4 L models 008441 ...
Page 258: ...258 Powerhead Powerhead Views Starboard 3 4 L models 008442 ...
Page 259: ...Powerhead Powerhead Views 259 11 Front 3 3 L models 008450 ...
Page 260: ...260 Powerhead Powerhead Views Front 3 4 L models 008439 ...
Page 261: ...Powerhead Powerhead Views 261 11 Rear 3 3 L models 007142 ...
Page 262: ...262 Powerhead Powerhead Views Rear 3 4 L models 008440 ...
Page 263: ...Powerhead Powerhead Views 263 11 Top 008438 ...
Page 264: ...264 Powerhead Powerhead Views Starboard ICON models 008504 ...
Page 269: ...Midsection Service Charts 269 12 Muffler 004117R ...
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