3B-24 - FUEL SYSTEM
90-830234R3 DECEMBER 1997
Enrichener System
Description for Three Cylinder
Engines
1995 and Earlier – Fuel flows (gravity fed) from top
carburetor float bowl to fuel enrichment valve.
1996/1997/1998 – Enrichener is pressurized by fuel
from a T-fitting in the fuel hose between the top and
middle carburetors.
Valve is electrically opened when key is turned to the
“ON” position and pushed in (and held in). Fuel is
supplied to engine through fittings located in the top,
middle, and bottom carburetors. Valve returns to the
closed position when key (or choke button) is re-
leased. Valve can be operated manually by PRESS-
ING and HOLDING button located at bottom of valve.
Enrichener Valve Hose Installation -
Three Cylinder Engines
a
b
c
I.D. 0.125 – 1996
I.D. 0.156 – 1996
a - 94/95 Models – Connect to Fitting on Side of Carburetor
96/97/98 Models – Connect to Fitting between Top and
Middle Carburetors
b - Electrical Harness
c - Enrichener Valve Manual Operation Button
Description for Four Cylinder Engines
Enrichener valve receives fuel from a T-fitting be-
tween #1 and #2 carburetors. Valve is electrically
opened when ignition key is turned to the “ON” posi-
tion and pushed in (and held in). Fuel is dispensed to
T-fittings on intake manifold of cylinders #2 and #4.
Internal passages route fuel from cylinders #2 and #4
to cylinders #1 and #3. Valve returns to the closed
position when key (or choke button) is released.
Valve can be operated manually by PRESSING and
HOLDING button located on top of valve.
Enrichener Valve Hose Installation -
Four Cylinder Engines
23121
c
b
a
I.D. 0.156 – 1996
I.D. 0.125 – 1996
a - Enrichener Valve Manual Operation Button
b - Electrical Harness
c - Connect to Fitting between #1 and #2 Carburetors
Summary of Contents for 100 FourStroke
Page 5: ...1 A 52485 IMPORTANT INFORMATION SPECIFICATIONS ...
Page 13: ...1 C IMPORTANT INFORMATION GENERAL INFORMATION ...
Page 23: ...1 D IMPORTANT INFORMATION OUTBOARD INSTALLATION ...
Page 37: ...A 2 53970 ELECTRICAL IGNITION ...
Page 81: ...B 2 11669 ELECTRICAL CHARGING AND STARTING SYSTEM ...
Page 108: ...C 2 22480 ELECTRICAL TIMING SYNCHRONIZING ADJUSTING ...
Page 119: ...D 2 ELECTRICAL WIRING DIAGRAMS ...
Page 146: ...A 3 53992 FUEL SYSTEM FUEL PUMP ...
Page 148: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3A 1 Notes ...
Page 161: ...B 3 FUEL SYSTEM CARBURETOR ...
Page 190: ...C 3 FUEL SYSTEM OIL INJECTION ...
Page 192: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3C 1 Notes ...
Page 211: ...4 20032 POWERHEAD ...
Page 215: ...90 830234R3 DECEMBER 1997 POWERHEAD 4 3 Notes ...
Page 292: ...A 5 MID SECTION CLAMP SWIVEL BRACKETS DRIVE SHAFT HOUSING ...
Page 294: ...90 830234R3 DECEMBER 1997 MID SECTION 5A 1 Notes ...
Page 317: ...5 51485 B MID SECTION POWER TRIM S N USA 0G360002 BEL 9934136 BELOW ...
Page 359: ...C 5 55331 MID SECTION POWER TRIM S N USA 0G360003 BEL 9934137 UP ...
Page 364: ...5C 4 MID SECTION 90 830234R3 DECEMBER 1997 Notes ...
Page 408: ...5 D MID SECTION SHOCK ABSORBER ...
Page 413: ...5 E MID SECTION MANUAL TILT ...
Page 451: ...A 6 791 H LOWER UNIT GEAR HOUSING ...
Page 489: ...6 B LOWER UNIT JET DRIVE ...
Page 491: ...90 830234R3 DECEMBER 1997 LOWER UNIT 6B 1 Notes ...
Page 513: ...A 7 50099 ATTACHMENTS CONTROL LINKAGE THROTTLE SHIFT LINKAGE ...
Page 543: ...7 B ATTACHMENTS CONTROL LINKAGE TILLER HANDLE ...
Page 545: ...90 830234R3 DECEMBER 1997 ATTACHMENTS CONTROL LINKAGE 7B 1 Notes ...
Page 567: ...51605 8 MANUAL STARTER ...
Page 569: ...90 830234R3 DECEMBER 1997 MANUAL STARTER 8A 1 Notes ...