This manual covers the Yamaha Marine 80hp 4 Stroke Outboard, manufactured between 1997 and 2001. These water-cooled, 4-cylinder outboards deliver 80hp and are designed for marine propulsion. Their robust engineering ensures reliability for a wide range of boating applications. This comprehensive service and repair manual provides detailed instructions for all maintenance, servicing, and repair procedures. It includes step-by-step guidance, exploded diagrams, and detailed photographs to assist owners, mechanics, and technicians in effectively maintaining and troubleshooting the Yamaha Marine 80hp 4 Stroke Outboard.