This manual covers the 75/90 HP outboard engines, renowned for their advanced E-TEC technology and reliable performance. These 2-cycle, 3-cylinder in-line engines, with a displacement of 1296 cc (79 cubic inches), are designed for efficient power delivery and dependable operation in various marine applications. Their water-cooled systems and injection oil systems contribute to their robust engineering and user-friendly maintenance. This comprehensive Workshop Service Manual, written in English, provides detailed instructions and technical specifications essential for the maintenance, repair, and troubleshooting of your 75/90 HP outboard. It includes step-by-step procedures, troubleshooting guides, electrical diagrams, and information on special tools, catering to both do-it-yourself enthusiasts and experienced mechanics. The manual is designed to ensure optimal performance and longevity of your engine.