This manual covers the Yamaha Outboard Motor Service Repair Manual 90, designed for models produced between 1984 and 1996. Yamaha is renowned for its engineering quality and reliability, and this comprehensive guide is tailored to assist with the repair, maintenance, rebuilding, refurbishing, and restoration of these powerful outboard motors, which range from 2 to 250 horsepower. It provides detailed information to ensure optimal performance and longevity for your Yamaha outboard.

The purpose of this English-language Service Repair Workshop Manual is to provide essential guidance for all aspects of your outboard motor's upkeep. It includes comprehensive maintenance and repair procedures, alongside technical specifications and troubleshooting information. Whether you are a seasoned technician or an owner dedicated to preserving your equipment, this manual serves as an indispensable resource for understanding, maintaining, and repairing your Yamaha outboard motor effectively.