This service and repair manual covers Johnson Evinrude 55 HP Outboard motors manufactured between 1973 and 1989. These water-cooled gasoline engines are known for their robust construction and reliable performance, making them a popular choice for various marine applications. This manual details the engineering and operational intricacies of these outboards, including their Sea Drive systems, providing comprehensive information for owners and technicians. This English-language manual offers extensive guidance on maintaining and repairing your Johnson Evinrude 55 HP outboard. It includes detailed procedures for complete tear-down and rebuilds, tune-up specifications, torque settings, and troubleshooting. With hundreds of photos and instructions, this manual covers everything from routine maintenance and winterization to complex repairs of the engine, fuel system, ignition, and transmission components, including gear case and trim/tilt systems. Wiring diagrams are also provided to assist with electrical system diagnostics.