This comprehensive service, repair, and maintenance manual is specifically designed for the 1986 Yamaha 40SJ outboard motor. It offers a detailed and structured approach to every aspect of the motor, from disassembly and repair to assembly and inspection. The manual utilizes a clear step-by-step format, simplifying the procedures for mechanics of all skill levels. Each chapter is thoughtfully organized with exploded diagrams placed strategically before each disassembly section, ensuring accurate identification of parts and facilitating effortless disassembly and assembly. This manual provides a complete and readily accessible resource for everything related to the 1986 Yamaha 40SJ outboard motor, eliminating the need for expensive dealer manuals.

The Yamaha 40SJ outboard motor is a reliable and powerful engine designed for a range of small to medium-sized boats. This four-stroke, single-cylinder engine boasts a displacement of 686cc and a maximum output of 40 horsepower, making it a versatile choice for fishing, waterskiing, and cruising. Its compact construction and lightweight design make it easy to handle and install, while its fuel-efficient nature and robust construction ensure a long-lasting and enjoyable boating experience. The 40SJ features a number of user-friendly features, including a convenient electric starter, a tiltable steering system, and a large fuel tank for extended outings.

The Yamaha 40SJ comes equipped with a range of innovative technologies that contribute to its performance and reliability. The engine utilizes a sophisticated computerized ignition system for smooth and efficient operation, while its advanced cooling system ensures optimal thermal regulation. The 40SJ also incorporates a protective gearcase designed to withstand the rigors of challenging marine environments. Its durable construction and meticulous engineering ensure that this outboard motor delivers exceptional performance and longevity, even in demanding conditions. With its ease of use, powerful performance, and enduring reliability, the Yamaha 40SJ is a popular choice among boaters seeking a well-rounded and dependable outboard motor for recreational and professional applications.