The Yamaha 15ESD, a first-generation model produced around 1990, represents a robust and reliable marine propulsion system. This 2-stroke outboard motor, featuring a 212 cc displacement and delivering 15 horsepower at 5000 RPM, is engineered for dependable performance. Its water-cooled system, CDI ignition, and carburetor fuel induction are designed for efficiency and ease of operation. The electric start system on the ESD model further enhances user convenience, making it a practical choice for various boating applications. This comprehensive Service Repair Maintenance Manual provides essential information for the Yamaha 15ESD. It covers critical maintenance procedures, including lubrication requirements with TC-W3 certified oil and specific fuel mixture ratios, as well as detailed service intervals. Technical specifications for engine components, electrical systems, and dimensions are included, alongside guidance on troubleshooting and safe operation. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain the optimal performance and longevity of their Yamaha 15ESD outboard motor.