3B-20 - FUEL SYSTEM
90-830234R3 DECEMBER 1997
Fuel System Troubleshooting
General Information
Problems that are thought to be caused by the fuel
system may, in reality, be something completely dif-
ferent. Items, that are shown below, could give the
impression that there is a problem in the fuel system.
1. Propeller
2. Spark Plugs
3. Ignition Timing
4. Ignition Spark Voltage
5. Cylinder Compression
6. Reed Valves
Typical symptoms and solutions in troubleshooting a
fuel system are shown below.
Problem: Engine Floods
Possible Cause
Corrective Action
Dirt or debris are preventing inlet needle from seat-
ing
Flush out inlet seat and clean inlet needle
Worn inlet needle
Replace
Punctured float
Replace
Incorrect float setting
Reset float
Problem: Engine Runs Too Rich
Possible Cause
Corrective Action
Fuel level too high
Reset float to correct level
Carburetor floods
See preceding “Engine Floods”
Idle nozzle air holes plugged
Blow out with compressed air
Restricted air flow
Inspect cowl air inlet and carburetor for obstructions
Main fuel jet loose
Re-tighten jet
Problem: Fuel Blow Back Out Of Carburetor
Possible Cause
Corrective Action
Chipped or broken reeds on reed block
Replace reeds
Problem: Rough Idle
Possible Cause
Corrective Action
Excessive pre-load on reeds
Replace reeds
Содержание 100 FourStroke
Страница 5: ...1 A 52485 IMPORTANT INFORMATION SPECIFICATIONS ...
Страница 13: ...1 C IMPORTANT INFORMATION GENERAL INFORMATION ...
Страница 23: ...1 D IMPORTANT INFORMATION OUTBOARD INSTALLATION ...
Страница 37: ...A 2 53970 ELECTRICAL IGNITION ...
Страница 81: ...B 2 11669 ELECTRICAL CHARGING AND STARTING SYSTEM ...
Страница 108: ...C 2 22480 ELECTRICAL TIMING SYNCHRONIZING ADJUSTING ...
Страница 119: ...D 2 ELECTRICAL WIRING DIAGRAMS ...
Страница 146: ...A 3 53992 FUEL SYSTEM FUEL PUMP ...
Страница 148: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3A 1 Notes ...
Страница 161: ...B 3 FUEL SYSTEM CARBURETOR ...
Страница 190: ...C 3 FUEL SYSTEM OIL INJECTION ...
Страница 192: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3C 1 Notes ...
Страница 211: ...4 20032 POWERHEAD ...
Страница 215: ...90 830234R3 DECEMBER 1997 POWERHEAD 4 3 Notes ...
Страница 238: ...4 26 POWERHEAD 90 830234R3 DECEMBER 1997 Throttle Lever Models 80Jet 100 115 125 95 2 4 C With Teflon 92 825407A12 ...
Страница 276: ...4 64 POWERHEAD 90 830234R3 DECEMBER 1997 4 Cylinder Fuel Enrichment Accelerator Pump Hose Routing ...
Страница 292: ...A 5 MID SECTION CLAMP SWIVEL BRACKETS DRIVE SHAFT HOUSING ...
Страница 294: ...90 830234R3 DECEMBER 1997 MID SECTION 5A 1 Notes ...
Страница 317: ...5 51485 B MID SECTION POWER TRIM S N USA 0G360002 BEL 9934136 BELOW ...
Страница 359: ...C 5 55331 MID SECTION POWER TRIM S N USA 0G360003 BEL 9934137 UP ...
Страница 364: ...5C 4 MID SECTION 90 830234R3 DECEMBER 1997 Notes ...
Страница 408: ...5 D MID SECTION SHOCK ABSORBER ...
Страница 413: ...5 E MID SECTION MANUAL TILT ...
Страница 451: ...A 6 791 H LOWER UNIT GEAR HOUSING ...
Страница 489: ...6 B LOWER UNIT JET DRIVE ...
Страница 491: ...90 830234R3 DECEMBER 1997 LOWER UNIT 6B 1 Notes ...
Страница 513: ...A 7 50099 ATTACHMENTS CONTROL LINKAGE THROTTLE SHIFT LINKAGE ...
Страница 543: ...7 B ATTACHMENTS CONTROL LINKAGE TILLER HANDLE ...
Страница 545: ...90 830234R3 DECEMBER 1997 ATTACHMENTS CONTROL LINKAGE 7B 1 Notes ...
Страница 567: ...51605 8 MANUAL STARTER ...
Страница 569: ...90 830234R3 DECEMBER 1997 MANUAL STARTER 8A 1 Notes ...