CLYMER MANUAL, MERCURY 3.9-135 HP OB 64-1971

This Clymer DIY repair manual covers 1964-1971 Mercury 3.9-135 HP, 1-cylinder to 6-cylinder outboard motors.

TABLE of CONTENTS:

General information

Tools and techniques

Troubleshooting

Lubrication, maintenance and tune-up

Engine synchronization and linkage adjustments

Fuel system

Ignition and electrical systems

Power head

Lower unit

Automatic rewind starters

Merc Thruster electric outboards

Wiring diagrams