This manual covers the Yamaha 50G, 60F, 70B, 75C, 80A, and 90A Outboard Motor models manufactured between 1996 and 2006. These outboard motors are engineered for reliable performance across a range of applications, offering horsepower from 50 to 90 HP. They are designed with robust construction and advanced engineering principles to ensure durability and efficiency on the water. This comprehensive guide provides the necessary information to understand and operate these Yamaha outboard motors effectively. The purpose of this complete workshop service repair manual is to provide detailed guidance for maintenance, troubleshooting, and repair. It includes step-by-step instructions with visual aids for all repair and service procedures, covering every aspect from A to Z. This manual is intended for owners, mechanics, and technicians, enabling them to perform necessary upkeep and repairs, thereby saving time and resources. The content is accessible on all PC and MAC computers, tablets, and mobile phones, and can be printed for convenient use.