This service repair manual covers Johnson Evinrude 2-40 HP outboard motors manufactured between 1973 and 1990. These robust outboard engines, available in 2, 3, or 4-cylinder configurations, are designed for a wide range of marine applications. Their engineering emphasizes reliability and performance, making them a trusted choice for boaters. This manual provides comprehensive information to ensure these engines operate at their peak efficiency and longevity. 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 tune-up procedures, lubrication, electrical system specifications, and troubleshooting guides. By following the procedures outlined herein, owners, mechanics, and technicians can effectively maintain and repair these engines, ensuring continued dependable operation on the water.