This comprehensive repair manual provides detailed instructions and diagrams for servicing and repairing 1958-1972 Johnson and Evinrude 50-125 HP two-stroke outboard motors. It's an indispensable resource for anyone who wants to maintain, troubleshoot, or rebuild these classic engines. The manual includes step-by-step procedures for all aspects of engine repair, including:

* **Engine Disassembly and Assembly:** Detailed instructions for removing, inspecting, and reassembling engine components such as cylinders, pistons, connecting rods, crankshaft, and bearings.
* **Fuel System:** Guidance on troubleshooting and repairing fuel pumps, carburetors, fuel lines, and fuel filters.
* **Ignition System:** In-depth coverage of spark plugs, ignition coils, distributors, and other ignition components.
* **Cooling System:** Information on inspecting and repairing cooling systems, including water pumps, thermostats, and cooling passages.
* **Electrical System:** Troubleshooting and repair procedures for the electrical system, including wiring diagrams, starter motors, alternators, and control boxes.
* **Lubrication System:** Details on lubricating the engine, including oil pumps, oil filters, and oil lines.
* **Troubleshooting and Diagnostic Techniques:** Valuable tips and techniques for diagnosing engine problems and finding solutions.
* **Parts Diagrams and Specifications:** Comprehensive diagrams and specifications for accessing the correct parts and understanding the engine's design.

This repair manual is an essential tool for both professional mechanics and home mechanics alike, providing the necessary information to keep these iconic motors running smoothly.

The 1958-1972 Johnson and Evinrude 50-125 HP outboard motors were powerful and popular workhorses for boaters in their time. These two-stroke engines, produced by the Outboard Marine Corporation (OMC), spanned a range of horsepower options, offering choices for fishing boats, cruisers, and even some smaller runabouts. The engines featured innovative technologies for their era, including the "Power-Dome" combustion chamber designed for efficient fuel combustion, and the "Power-Flow" intake system for improved airflow. These features, combined with the reliable and durable construction characteristic of Johnson and Evinrude outboards, earned them a reputation for performance and longevity.

While these engines are now considered vintage, they remain sought after by collectors and enthusiasts. Their robust design and availability of replacement parts mean that even after decades, many of these engines can still be brought back to life. The 1958-1972 Johnson and Evinrude 50-125 HP outboards are a testament to the engineering prowess of their time, offering a glimpse into the history of boating and a reminder of the ingenuity of the past. A repair manual specifically for these models is a valuable resource for anyone looking to restore, maintain, or learn more about these classic outboards. It provides detailed information on the engine's components, operation, troubleshooting, and repair procedures, making it an essential tool for both seasoned mechanics and hobbyists alike.