This service repair manual covers Johnson Evinrude outboard motors manufactured between 1973 and 1990, specifically models ranging from 2 to 40 horsepower. These reliable two-stroke engines, known for their robust engineering, are designed for a variety of marine applications. The manual encompasses multiple engine variations for each horsepower rating, ensuring comprehensive coverage for owners and technicians. It also includes details on electric motor functionality, providing a complete resource for these popular outboard units. The purpose of this manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of your Johnson Evinrude outboard motor. It includes essential information on general maintenance, lubrication, tune-ups, and specific adjustments for engine synchronization and linkages. Furthermore, the manual offers in-depth coverage of the fuel system, electrical system, powerhead, gearcase, and automatic rewind starters, along with part diagrams and torque specifications. This comprehensive English-language document is designed to assist both novice owners and professional mechanics in keeping their engines in optimal working condition.