This Service Repair Manual covers Johnson Evinrude Outboard Engines manufactured between 1973 and 1989, encompassing a wide range of models with horsepower from 48 to 235. These engines are known for their robust engineering and reliable performance on the water. This manual is designed to provide comprehensive information for maintaining and repairing these versatile outboard power units, ensuring they continue to operate at their peak efficiency for years to come. The purpose of this manual is to serve as a complete guide for owners and technicians. It details routine maintenance procedures, including tune-ups and lubrication, as well as in-depth repair and rebuilding instructions. Troubleshooting guidance, technical specifications, component breakdowns, exploded views, and wiring diagrams are all included to facilitate accurate diagnosis and repair of various systems such as fuel, ignition, electrical, power trim/tilt, gearcase, and powerhead. The manual is presented in English and is designed for easy usability, with clear, step-by-step instructions and illustrations.