This manual covers the 1990 Yamaha 8 LD Outboard, a gasoline-powered, water-cooled outboard motor featuring an aluminum alloy powerhead and a long shaft. Designed for reliable marine propulsion, this model utilizes a CDI ignition system and offers forward, neutral, and reverse gears within its outboard gearcase. Its construction emphasizes durability and performance for various boating applications. This Factory Service Manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of your Yamaha 8 LD Outboard. It includes step-by-step procedures, exploded diagrams, and technical specifications to assist owners, mechanics, and technicians. The manual is presented in an English, bookmarked, and searchable format, ensuring efficient access to information regarding lubrication, starting systems, and other critical operational aspects.