This manual covers Johnson Evinrude outboard motors manufactured between 1973 and 1989, encompassing models with horsepower ranging from 48 HP to 235 HP. These engines, available in various configurations including 2-cylinder, 3-cylinder, V4, and V6, are known for their robust engineering and reliable performance in diverse marine applications. This comprehensive guide is designed to provide detailed information for owners and technicians alike, ensuring the continued operational excellence of these powerful marine propulsion systems. The purpose of this factory service manual is to offer complete guidance for the maintenance, repair, and troubleshooting of your Johnson Evinrude outboard. It includes detailed procedures for scheduled maintenance, lubrication, ignition and fuel system service, as well as comprehensive instructions for power head, gearcase, power trim/tilt, and sea drive systems. With easy-to-read text, step-by-step instructions, top-quality technical and exploded diagrams, wiring diagrams, and essential troubleshooting guides, this manual is an indispensable resource for all aspects of engine upkeep and repair.