This manual covers the 1987 Yamaha 9.9ELH Outboard Motor, a robust 2-stroke gasoline engine designed for reliable performance. Engineered with precision, this outboard motor is built for service, repair, and maintenance, ensuring optimal operation for its intended use. Yamaha's commitment to quality is reflected in the durable construction and dependable functionality of this model, making it a trusted choice for marine applications. This comprehensive Factory Service Manual in English provides essential information for owners, mechanics, and technicians. It details general information, periodic inspections and adjustments, fuel system, power unit, lower unit, bracket unit, and electrical system. With step-by-step instructions, detailed wiring diagrams, illustrations, photos, and exploded views, this manual facilitates efficient diagnostics and repair, offering the best available guidance for maintaining the Yamaha 9.9ELH Outboard Motor.