This manual covers the Johnson Evinrude 55 HP Outboard models manufactured between 1973 and 1990. These engines are recognized for their robust engineering and reliable performance, making them a popular choice for various marine applications. This comprehensive guide is designed to provide in-depth information on maintaining and repairing these specific outboard units. The purpose of this Factory Service Repair Manual is to serve as an authoritative resource for owners, mechanics, and technicians. It details essential maintenance procedures, troubleshooting techniques, and technical specifications necessary for optimal engine operation. The manual includes detailed step-by-step instructions, diagnostic guidance, wiring diagrams, and illustrations to facilitate accurate repairs and upkeep of your Johnson Evinrude 55 HP Outboard.