This comprehensive 1986 Yamaha F9.9SJ Outboard Service Manual is an essential resource for anyone seeking to maintain, repair, or troubleshoot their outboard motor. It provides a detailed and in-depth look at all aspects of the F9.9SJ model, presented in a clear and easy-to-understand format. The manual begins with general information about the engine, followed by sections on periodic inspections and adjustments, ensuring your motor runs smoothly. It then delves into the specifics of each system, including the fuel system, power unit, lower unit, bracket unit, and electrical system. You'll find in-depth explanations, detailed wiring and circuit diagrams, illustrations, photos, and exploded views to guide you through each repair. Additionally, the manual includes troubleshooting sections and specifications, providing the information you need to diagnose problems and ensure your engine runs at peak performance. This factory service manual is the definitive guide to your 1986 Yamaha F9.9SJ outboard, offering the knowledge and technical expertise you need to keep your motor running smoothly for years to come.

The Yamaha F9.9SJ Outboard is a compact and reliable 9.9 horsepower four-stroke outboard motor designed for a wide range of boating applications. It's a popular choice for small fishing boats, dinghies, tenders, and even inflatables, offering exceptional fuel economy and quiet operation. This outboard features a single-cylinder, air-cooled engine with a displacement of 282cc, making it a lightweight and easily maneuverable option. The F9.9SJ boasts a robust design with a corrosion-resistant aluminum alloy housing and a durable stainless steel propeller for optimal performance and longevity. Its manual start system ensures reliable ignition in any condition, while the tilt-trim feature allows for easy adjustment of the motor's angle for optimal handling and performance. The Yamaha F9.9SJ Outboard is renowned for its user-friendly design and ease of maintenance. Its advanced features include a low-oil warning system, which alerts the operator when engine oil levels are low, preventing potential damage to the engine. The F9.9SJ also features a fuel-efficient design with a large fuel tank capacity for extended outings. Its compact size and light weight make it easy to transport and install, while its robust construction and reliable performance make it a valuable asset for any boater. Whether you are a seasoned angler or a casual recreational boater, the Yamaha F9.9SJ Outboard is a reliable and versatile option that will provide years of dependable service.