136
FUEL SYSTEM
COMPONENTS
Fuel Reservoir
The vapor separator accumulates fuel in an inter-
nal fuel reservoir and supplies fuel to the electric
circulation pump. It is water-cooled to enhance
vapor separating capabilities.
Cooling
Water is used to cool the fuel as it flows through
the vapor separator. The cooling passage of the
separator self-drains when the outboard is stored
vertically. Refer to
Venting
The fuel vapor vent regulates fuel vapor pressure
in the reservoir.
The vapor separator vent is opened and closed by
a float valve. The float valve moves relative to the
fuel level in the fuel chamber. Hot fuel causes an
increase in vapor pressure. This results in a lower
fuel level in the vapor separator. The float valve
drops and the vent opens. This allows fuel vapor
to flow to the intake manifold through the vent
hose.
As the vapor pressure in the vapor separator
decreases, the fuel level begins to increase. An
increase in the fuel level raises the float valve and
the vent closes.
Pressure Regulator
The fuel pressure regulator helps maintain consis-
tent fuel pressure in the fuel system.
Fuel returning from the injectors enters the fuel
chamber of the vapor separator through a pres-
sure regulator. The pressure regulator maintains
approximately 20 to 30 psi (138 to 207 kPa) of fuel
pressure in the high pressure side of the fuel sys-
tem.
Fuel Circulation Pump
The fuel circulation pump is an electric high pres-
sure fuel pump.
Fuel Supply
The pump is mounted to the vapor separator and
draws fuel from the fuel chamber. It pumps pres-
surized fuel through a fuel supply manifold con-
nected to the fuel injectors.
Electrical Circuit
The circulation pump is controlled by the
EMM
and operates on the 12 V circuit. The circulation
pump is activated momentarily when the
EMM
powers up. The
EMM
controls pump operation by
rapidly connecting and disconnecting the pump’s
internal coil to ground.
1.
Vent
004187
1.
Vent hose connection to intake
004188
1
1
005024
Summary of Contents for E-TEC 200
Page 1: ...Main Menu...
Page 2: ......
Page 161: ...OILING SYSTEM OIL SUPPLY DIAGRAMS 159 8 008208 Starboard View Port View...
Page 163: ...OILING SYSTEM OIL SUPPLY DIAGRAMS 161 8 008432 Starboard View Port View...
Page 165: ...OILING SYSTEM OIL RECIRCULATION DIAGRAMS 163 8 008207 Starboard View Port View...
Page 244: ...242 POWERHEAD POWERHEAD VIEWS POWERHEAD VIEWS Port Hose Routings 3 3 L models 007153...
Page 245: ...POWERHEAD POWERHEAD VIEWS 243 11 Starboard Hose Routings 3 3 L models 007154...
Page 246: ...244 POWERHEAD POWERHEAD VIEWS Port Hose Routings 3 4 L models 008503...
Page 247: ...POWERHEAD POWERHEAD VIEWS 245 11 Starboard Hose Routings 3 4 L models 008502...
Page 248: ...246 POWERHEAD POWERHEAD VIEWS Port 3 3 L models 008448...
Page 249: ...POWERHEAD POWERHEAD VIEWS 247 11 Starboard 3 3 L models 008449...
Page 250: ...248 POWERHEAD POWERHEAD VIEWS Port 3 4 L models 008441...
Page 251: ...POWERHEAD POWERHEAD VIEWS 249 11 Starboard 3 4 L models 008442...
Page 252: ...250 POWERHEAD POWERHEAD VIEWS Front 3 3 L models 008450...
Page 253: ...POWERHEAD POWERHEAD VIEWS 251 11 Front 3 4 L models 008439...
Page 254: ...252 POWERHEAD POWERHEAD VIEWS Rear 3 3 L models 007142...
Page 255: ...POWERHEAD POWERHEAD VIEWS 253 11 Rear 3 4 L models 008440...
Page 256: ...254 POWERHEAD POWERHEAD VIEWS Top 008438...
Page 257: ...POWERHEAD POWERHEAD VIEWS 255 11 Starboard ICON models 008504...
Page 263: ...MIDSECTION SERVICE CHART 261 12 Muffler 007117...
Page 364: ...S 2...
Page 396: ...I 10 INDEX NOTES NOTES Technician s Notes Related Documents Bulletins Instruction Sheets Other...
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