This manual covers Yamaha outboard motors ranging from 2 to 250 horsepower, manufactured between 1984 and 1996. It details a wide array of engine configurations, including 2-stroke and 4-stroke variants, with cylinder counts from 1 to 6, and displacements from 43cc to 3130cc. These robust engines, known for their reliability, were designed for diverse marine applications. The manual provides comprehensive information for these models, ensuring their continued performance and longevity. The purpose of this service repair manual is to provide detailed guidance for the maintenance, troubleshooting, and repair of Yamaha outboard motors. It includes step-by-step illustrated instructions covering all major systems such as fuel, ignition, electrical, lubrication, and cooling. This resource is intended for professional technicians, mechanics, and DIY enthusiasts, offering the necessary information to diagnose issues, perform tune-ups, and restore engines to optimal working condition.