This service repair manual covers the Yamaha 90hp Outboard Motor, produced between 1996 and 2006. Designed for reliable performance, these 2-stroke and 4-stroke outboard motors are available in 3 and 4 cylinder configurations and feature carburetor fuel systems. The Yamaha 90hp Outboard is engineered for durability and efficiency, making it a trusted choice for various marine applications. This comprehensive manual provides detailed information essential for the maintenance and repair of your Yamaha 90hp Outboard. It includes complete tear-down and rebuild procedures, maintenance schedules, troubleshooting guides, and technical specifications. With clear illustrations, part diagrams, electrical and hydraulic schematics, and real photo examples, this English language manual is an indispensable resource for owners and technicians to ensure optimal performance and longevity of the outboard motor.