90-830234R3
DECEMBER 1997
FUEL SYSTEM - 3A-11
Troubleshooting Fuel Pump
(continued)
PROBLEM: Lack of Fuel Pump Pressure
Possible Cause
Corrective Action
Hole in pulse hose
(1 pulse hose).
Replace pulse hose.
Loose pulse hose.
Tighten connection.
Boost diaphragm gasket
distorted or out of place.
Check seal between mating
surfaces where “rib” divides
pulse chamber – gasket
must align with rib; check for
distorted gasket. Align or
replace gasket if necessary.
Removal
•
Disassemble by removing 2 hex-head bolts; re-
move/disassemble fuel pump parts.
53992
a
a
a - Bolts – Fuel Pump
Fuel Pump –
Cleaning/Inspection
Clean fuel pump housing, check valves, pulse cham-
ber, and pump base in solvent, and dry all but check
valves with compressed air.
Inspect each check valve (2 ea.), for cracks and/or
holes. Check each black rubber disc (2 ea.) to see
that the black coating is not coming off. Unless dam-
aged while disassembled, replacement is seldom
necessary. Inspect the Check Valve Assembly on
Chamber Plate (check by both pressure and suction
to hose barb), to see that check ball is moving and
functioning (1-3 psi (6.8 – 20.5 kPa required).
Inspect fittings on fuel pump housing for looseness
or any signs of fuel or air leaks. Replace or tighten fit-
ting if leak is found, or replace chamber Plate Assem-
bly.
Check Valve Reassembly
1. Insert retainer thru plastic disc and rubber check
valve.
51530
a
b
c
a - Retainer
b - Plastic Disc
c - Check Valve
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 ...