
3A-26
90-13645--2
495
FUEL SYSTEM AND CARBURETION
Acceleration Pump Circuit Operation -
Four Cylinder Engines
ACCELERATOR PUMP - Receives pressurized fuel
from T-fitting in fuel line between #1 and #2 carbure-
tors. Pump is actuated by throttle cam. Pumps to two
check valve/injector nozzles in #3 and #4 cylinder
boost passages.
FUEL FILTER - 74 micron filter. Prevents debris from
plugging check valve/injector nozzles.
CHECK VALVE/INJECTOR NOZZLE - 2 assemblies,
one each for #3 and #4 cylinders. Fuel passes from
check valve thru .026 inch orifice (injector nozzle) and
into respective cylinder boost passage.
FLOW RESTRICTOR - Helps equalize pressure with-
in the accelerator pump circuit while allowing air or
any vapor which has formed to pass through and be
vented at the carburetors.
FUEL CONNECTOR - Spring loaded shut off valve
which connects boat fuel tank with outboard fuel sys-
tem.
IMPORTANT: The distance between the accelera-
tor pump and the throttle cam determines the
amount of fuel the accelerator pump will dis-
charge. If accelerator pump is moved or replaced,
refer to SECTION 2C for correct positioning of ac-
celerator pump.
ACCELERATOR PUMP FUEL FLOW CIRCUIT
From T-Filtting between
#2 and #3 Carburetors
To #3 and #4 Cylinder Check
Valve/Injector Nozzles
To Fuel Pump
a
b
c
d
a - Accelerator Pump
b - Fuel Filter
c - Flow Restrictor
d - Fuel Connector
Содержание 100
Страница 4: ...GENERAL INFORMATION AND SPECIFICATIONS 1 ...
Страница 18: ...IGNITION SYSTEM ELECTRICAL AND IGNITION A 2 ...
Страница 30: ...11669 BATTERY CHARGING SYSTEM AND STARTING SYSTEM ELECTRICAL AND IGNITION B 2 ...
Страница 58: ...22480 TIMING SYNCHRONIZING ADJUSTING ELECTRICAL AND IGNITION C 2 ...
Страница 71: ...WIRING DIAGRAMS ELECTRICAL AND IGNITION D 2 ...
Страница 86: ...FUEL SYSTEM AND CARBURETION A 3 ...
Страница 118: ...OIL INJECTION SYSTEM B 3 ...
Страница 127: ...20032 3 CYLINDER ENGINES POWERHEAD A 4 ...
Страница 168: ...791 H GEAR HOUSING LOWER UNIT A 5 ...
Страница 170: ...5A 1 90 13645 2 1095 LOWER UNIT Notes ...
Страница 205: ...MID SECTION LOWER UNIT B 5 ...
Страница 207: ...5B 1 90 13645 2 495 LOWER UNIT Notes ...
Страница 218: ...SHOCK ABSORBER LOWER UNIT C 5 ...
Страница 223: ...17250 DESIGN I SIDE FILL RESERVOIR POWER TRIM A 6 ...
Страница 233: ...6A 9 POWER TRIM 90 13645 2 495 Commander Side Mount Remote Control Wiring Diagram ...
Страница 268: ...DESIGN II AFT FILL RESERVOIR POWER TRIM B 6 51344 ...
Страница 305: ...SINGLE RAM POWER TRIM C 6 51485 ...
Страница 309: ...6C 3 90 13645 2 495 POWER TRIM Notes ...
Страница 340: ...50099 ENGINE ATTACHMENTS ENGINE INSTALLATION 7 A ...
Страница 369: ...TILLER HANDLE AND CO PILOT OUTBOARD MOTOR INSTALLATION ATTACHMENTS 7 B ...
Страница 371: ...7B 1 90 13645 2 495 OUTBOARD MOTOR INSTALLATION ATTACHMENTS Notes ...