This comprehensive 1986 Yamaha Outboard 40SJ Service Repair Maintenance Manual is your ultimate resource for maintaining and repairing your outboard motor. It provides detailed instructions and technical specifications covering all aspects of the engine, from general information and periodic inspections to in-depth coverage of the fuel, power, and electrical systems. The manual also includes a thorough breakdown of the lower and bracket units, complete with wiring diagrams, illustrations, photos, exploded views, and step-by-step instructions. Troubleshooting sections offer guidance to diagnose and resolve potential issues, ensuring you have the knowledge and tools necessary to keep your Yamaha 40SJ outboard running smoothly.

The Yamaha 40SJ outboard motor is a reliable and powerful engine designed for a variety of marine applications. This 40 horsepower, 4-stroke outboard features a compact and lightweight design, making it ideal for smaller boats and dinghies. Its fuel-efficient operation and low emissions contribute to a more environmentally friendly boating experience. The 40SJ boasts a single-cylinder configuration, delivering smooth and consistent power, while its durable construction ensures longevity and resistance to the elements. The outboard's user-friendly features and straightforward maintenance procedures make it an appealing option for both experienced boaters and those new to outboard motor ownership.

The Yamaha 40SJ comes equipped with a range of features designed to enhance performance and convenience. These include a built-in tilt mechanism for easy transportation and storage, a manual start system for reliable ignition, and a spacious fuel tank that minimizes the need for frequent refills. The 40SJ also features a robust cooling system that effectively dissipates heat, ensuring optimal engine performance even during extended use. Additionally, its corrosion-resistant components provide lasting protection against the harsh marine environment. Owners can further enhance the overall experience by exploring a selection of optional accessories, such as a remote control kit, which offers greater control and maneuverability, and a protective cover, which helps preserve the motor's condition.