1958-1972 Johnson and Evinrude 50 hp-125 hp, 3 cyl, V4, 2-stroke models service manual

Product Information

Table of Contents

Safety

1. Introduction

   • General Safety Information
   • Hazardous Materials Handling

2. Cleaning, Waxing, and Polishing

   • Exterior Maintenance
   • Protective Coatings

3. Controlling Corrosion

   • Anti-Corrosion Measures
   • Corrosion-Resistant Materials

4. Propellers

   • Propeller Safety
   • Installation and Removal

5. Fuel System

   • Safety Precautions
   • Handling Fuel

6. Fire Prevention

   • Fire Safety Measures
   • Fire Extinguisher Use

7. Electrical System

   • Electrical Safety
   • Battery Handling

8. Emergency Equipment

   • Required Safety Equipment
   • Emergency Procedures

9. Boating

   • Safe Boating Practices
   • Navigation Rules

10. Miscellaneous Equipment

    • Additional Safety Equipment
    • Tools and Spare Parts

11. Boating Accident Reports

    • Reporting Procedures
    • Accident Documentation

Synchro

1. Introduction

   • Basic Synchro Principles
   • System Overview

2. Tune-Up Schedule

   • Regular Maintenance Intervals
   • Special Maintenance Intervals

3. Compression Check

   • Tools and Equipment
   • Checking Procedure

4. Ignition System

   • System Overview
   • Component Check

5. Carburetor Adjustments

   • Basic Adjustments
   • Advanced Tuning

6. Synchronizing Components

   • Synchro Procedure
   • Adjustment Points

7. Spark Plug Adjustments

   • Plug Types and Gaps
   • Installation Tips

8. Checking Points

   • Inspection Checklist
   • Wear Indicators

9. Synchronizing Solenoid

   • Solenoid Function
   • Adjustment Procedures

10. Re-Synchronizing

    • Post-Maintenance Synchronization
    • Troubleshooting Tips

Powerhead

1. Introduction

   • Powerhead Overview
   • Key Components

2. Theory of Operation

   • Powerhead Mechanics
   • Operational Principles

3. Specifications and Data

   • Technical Specifications
   • Performance Data

4. Powerhead Disassembling

   • Disassembly Procedures
   • Required Tools

5. Cleaning and Inspection

   • Cleaning Methods
   • Inspection Points

6. Assembly

   • Reassembly Instructions
   • Torque Specifications

7. Powerhead Testing

   • Testing Procedures
   • Performance Checks

Fuel

1. Introduction

   • Fuel System Overview
   • Key Components

2. General Carburetor Information

   • Carburetor Types
   • Basic Operation

3. Troubleshooting

   • Common Issues
   • Diagnostic Procedures

4. Special Tools

   • Required Tools for Fuel System
   • Tool Specifications

5. Component Replacement

   • Replacement Procedures
   • Installation Tips

6. Fuel Lines and Filters

   • Fuel Line Routing
   • Filter Replacement

7. Fuel Pump

   • Operation and Maintenance
   • Troubleshooting

8. Fuel Tank

   • Tank Maintenance
   • Cleaning and Inspection

9. Choke System

   • Manual and Automatic Chokes
   • Adjustment Procedures

10. Primer Bulbs and Fuel Valves

    • Maintenance Tips
    • Replacement Instructions

Ignition

1. Introduction

   • Ignition System Overview
   • Safety Precautions

2. Ignition Systems

   • Types and Operation
   • Component Overview

3. Spark Plug Evaluation

   • Plug Types
   • Inspection and Replacement

4. Other Ignition Parts

   • Coils and Wires
   • Testing and Replacement

5. Type I Ignition (Distributor Magneto)

   • System Components
   • Troubleshooting

6. Type II Ignition (Battery Ignition)

   • System Overview
   • Component Replacement

7. Capacitor Discharge Ignition (CDI)

   • System Functionality
   • Troubleshooting

8. Synchronizing Ignition

   • Synchronizing Procedures
   • Timing Adjustments

Electrical

1. Introduction

   • Electrical System Overview
   • Safety Precautions

2. Batteries

   • Types and Maintenance
   • Charging Instructions

3. Battery Cables

   • Cable Inspection
   • Replacement Procedures

4. Gauge and Meter Installation

   • Installation Instructions
   • Calibration

5. Troubleshooting Electrical Problems

   • Diagnostic Procedures
   • Common Issues

6. Fuses and Circuit Breakers

   • Fuse Types
   • Replacement Procedures

7. Wiring Diagrams

   • Electrical Schematic Diagrams
   • System Layouts

8. Lighting Systems

   • Navigation Lights
   • Maintenance and Replacement

9. Starter System

   • Starter Motor Maintenance
   • Solenoid Testing

10. Alternator

    • Alternator Testing
    • Belt Replacement

11. Electrical Testing Equipment

    • Tools and Usage
    • Diagnostic Procedures

12. Starter Flywheel Gear

    • Gear Inspection
    • Replacement Procedures

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