This Service Repair Manual covers Johnson Evinrude outboard engines manufactured between 1973 and 1989, encompassing models from 48hp to 235hp. These engines are known for their robust engineering and reliable performance, making them a popular choice for a wide range of marine applications. The manual provides comprehensive information for specific horsepower models including 48, 50, 55, 60, 65, 70, 75, 85, 88, 90, 100, 110, 115, 120, 135, 140, 150, 175, 185, 200, 225, and 235. The purpose of this manual is to serve as an authoritative guide for maintaining and repairing your Johnson Evinrude outboard engine. It details essential procedures for general information, troubleshooting, lubrication, routine maintenance, tune-ups, engine synchronization, linkage adjustments, fuel and ignition systems, power head, gearcase, and power trim and tilt systems. With clear instructions and technical specifications, this manual empowers owners, mechanics, and technicians to ensure optimal performance and longevity of their marine power units.