Mercury 75 Service Manual

3C-0 - FUEL SYSTEM 90-830234R3 DECEMBER 1997
Table of Contents
Page
Notes: 3C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Injection Components
(S/N–USA–0G301750/BEL–9885504 & BELOW) 3C-2
Oil Injection Components
(S/N–USA–0G301751/BEL–9885505 & UP) 3C-4. . .
Description 3C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hose Connections 3C-6. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Drive System 3C-6. . . . . . . . . . . . . . . . . . . . .
3 and 4 Cylinder Oil Flow Diagram 3C-7. . . . . . . . . . .
Filling Oil Tank 3C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carburetor/Oil Pump Synchronization 3C-8. . . . . . . . .
Bleeding Air from Oil Injection System 3C-9. . . . . . . .
Bleeding Air from Oil Pump Inlet Hose 3C-9. . . . .
Bleeding Air from Oil Pump Outlet Hose 3C-9. . . .
Page
Oil Pump Test 3C-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Oil Sensor Test 3C-10. . . . . . . . . . . . . . . . . . . . . . . .
Warning Horn System 3C-10. . . . . . . . . . . . . . . . . . . . . .
Oil Injection System
Troubleshooting Chart 3C-11. . . . . . . . . . . . . . . . . . . . . .
(Models with Warning Module) 3C-11. . . . . . . . . . . .
Troubleshooting the Oil Injection System 3C-11. . .
Troubleshooting Chart 3C-11. . . . . . . . . . . . . . . . . . .

Mercury 75 Specifications

General

Horsepower	75 hp
Starting	Electric
Cylinders	3
Warranty	3 years
Shaft Length	20 in. or 25 in.