1.HERE IS A SAMPLE OF MERCURY/MARINER FACTORY SERVICE MANUAL


Mercury-Mariner Outboard Service Manuals 

Download Manuals Below

1965-1989 Mercury Mariner Workshop Workshop Manual 2 To 40 Hp 2 Stroke

1965-1989 Mercury Workshop Repair Manual 45 Thru 115hp 2 Stroke

1965-1989 Mercury Outboard 90-300 HP Repair Manual

1990-2000 Mercury Mariner Workshop Repair Manual 2.5 to 275 2-Stroke Motors

1986-2003 Mercury Factory Service Manual 6/8/9.9/10/15HP 2 Stroke

1995-2000 Mercury Mariner Factory 40 45 50 HP Service Manual

1997-2000 Mercury Mariner Factory 40 50 55 60hp Service Manual 2 Stroke

1997 1998 Mercury Factory Optimax 200 & 225 HP Service Manual

1998-1999 Mercury Mariner Factory 9.9 & 15 HP Service Repair Manual

1998-1999 Mercury Factory 135HP (135 HP) & 150HP (150 HP) Service Manual

1999-2002 Mercury - Mariner Factory 30 HP 40 HP Service Manual 4-Stroke Outboard

1999-2000 Mercury - Mariner Factory Service Manual 4HP 5HP 6HP (4 Stroke)

2000 2001 Mercury Factory 75/90 HP (75hp & 90hp) Outboard Service Manual

2000-2001 Mercury Factory Optimax 115 135 150 175 Service Repair Manual DFI

2001 Mercury Mariner Factory 50 HP & 2001 60 HP Service Manual

2001 2002 Mercury Factory 115 HP (115HP) Service Manual 4-Stroke

2002-2004 Mercury Factory 40 HP 50 HP 60 HP Service Manual 4-Stroke


For a complete understanding of fuel systems and fuel pump operation for the Mercury Mariner 40 hp 45 hp 50hp 1995, 1996, 1997, 1998, 1999 2000 outboard motor. follow the link above for a complete factory service repair manual guide available for instant download in pdf format.  High quality picture illistrations, diagrams and step-by-step procedure to get the job done right. A must have manual for any repair job.

FUEL SYSTEM

Fuel Pump

 

 

 

 

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-1

Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-2

Fuel Pump Operation . . . . . . . . . . . . . . . . . . . . . . 3A-4

Fuel Pump Removal . . . . . . . . . . . . . . . . . . . . . . . 3A-5

Fuel Pump Disassembly . . . . . . . . . . . . . . . . . . . 3A-6

Cleaning/Inspection/Repair . . . . . . . . . . . . . . . . . 3A-7

Fuel Pump Reassembly . . . . . . . . . . . . . . . . . . . . 3A-8

Fuel Pump Installation

 

 

FUEL SYSTEM

Fuel Pump Type

Fuel Pump:

Pressure

Diaphragm Stroke

Plunger Stroke

Fuel Tank Capacity

 

 

Pump Operation

 

1. The fuel pump is a diaphragm pump which is mechanically driven off of the rocker arm.

2. The black mounting block (insulator) and the two outlets on the fuel pump help prevent

vapor lock.

3. If the engine runs out of fuel, or has a restriction preventing adequate fuel flow, the pump

will make a “clicking” noise.

 

 

1. Remove sta-straps from fuel lines.

IMPORTANT: The hose fittings on the fuel pump can break if you try twisting or pulling

the hoses off. Remove hoses by slowly prying off the hoses using a small screwdriver.

2. Disconnect fuel lines from pump.

3. Separate fuel pump from cylinder head cover by removing mounting bolts.