This service repair manual covers Johnson Evinrude Outboard engines manufactured between 1973 and 1990. These robust outboard motors, typically two-stroke, range in horsepower from 48 HP to 235 HP, offering a versatile solution for various marine applications. Known for their reliable performance and durable construction, Johnson Evinrude outboards have been a staple in marine propulsion for decades. This manual provides comprehensive information to ensure these engines continue to operate at peak efficiency. The purpose of this manual is to serve as an indispensable resource for maintaining and repairing your Johnson Evinrude Outboard. It details routine maintenance procedures, lubrication schedules, tune-up specifications, and troubleshooting guides to address common issues. Furthermore, it includes in-depth coverage of the fuel system, electrical components such as ignition systems and wiring diagrams, the cooling system, and power trim and tilt systems. With hundreds of illustrations and photos, this manual provides clear, step-by-step instructions for owners, mechanics, and technicians.