This comprehensive service manual covers all Yamaha outboards manufactured between 1984 and 1996, encompassing a wide range of models from 2 horsepower to 250 horsepower. It serves as an essential resource for technicians and boat owners alike, providing detailed instructions and diagrams for a multitude of repair and maintenance procedures. From basic troubleshooting to complex engine overhauls, this manual offers a complete guide to understanding and servicing your Yamaha outboard. It encompasses both 2-stroke and 4-stroke models, including: * **2-stroke outboards:** 2hp, 3hp, 4hp, 5hp, 6hp, 8hp, 9.9hp, 15hp, 20hp, 25hp, 28 Jet, 30hp, 35 Jet, 40hp, 50hp, 55hp, 60hp, 65 Jet, 70hp, 75hp, 80hp, 80 Jet V4, 85hp, 90hp, 105 Jet V6, 115hp V4, 130hp V4, 140hp V4, 140 Jet V6, 150hp V6, 175hp V6, 200hp V6, 220hp V6, 225hp 76 deg. V6, 225hp 90 deg. V6, 250hp V6. * **4-stroke outboards:** 9.9hp, 45hp, 50hp. This manual includes detailed information on: * **Engine Disassembly and Assembly:** Step-by-step procedures for taking apart and reassembling various engine components. * **Electrical Systems:** Comprehensive coverage of electrical wiring diagrams, troubleshooting guides, and repair instructions for all electrical components. * **Fuel and Ignition Systems:** Detailed explanations of fuel systems, carburetors, ignition systems, and associated components. * **Cooling Systems:** In-depth information on cooling system operation, maintenance, and troubleshooting techniques. * **Lubrication and Maintenance:** Comprehensive guides on proper lubrication, routine maintenance schedules, and essential service procedures. * **Troubleshooting and Diagnostics:** Extensive troubleshooting charts, diagnostic procedures, and fault code explanations to help identify and resolve common issues. * **Specifications and Parts Diagrams:** Complete specifications for each outboard model, including detailed parts diagrams for easy component identification and ordering. This manual is an invaluable tool for anyone who owns or maintains a Yamaha outboard engine from 1984 to 1996, providing comprehensive information to ensure proper operation and long-lasting performance.

This comprehensive service manual covers a vast array of Yamaha outboard motors produced between 1984 and 1996. Spanning an impressive range of horsepower from a mere 2 horsepower to a powerful 250 horsepower, this manual serves as an invaluable resource for mechanics, enthusiasts, and anyone seeking to maintain or repair these iconic outboards. The manual meticulously details every aspect of the engines, including their intricate inner workings and complex systems. From basic troubleshooting to advanced engine rebuilds, this service manual provides the detailed instructions and diagrams needed to tackle any repair or maintenance task. It encompasses all models and variations within the specified year range, covering both 2-stroke and 4-stroke engines, ensuring a one-stop solution for all Yamaha outboard needs. The manual's robust content addresses a wide spectrum of technical specifications, including engine identification, mechanical components, electrical systems, fuel systems, cooling systems, starting and charging systems, and much more. It features clear and concise language, complemented by numerous high-quality illustrations, diagrams, and exploded views. This enables even novice users to understand and navigate complex procedures with confidence. The information presented in this manual is accurate and up-to-date, directly from the Yamaha factory, guaranteeing the highest level of technical expertise. With its comprehensive coverage and user-friendly format, this service manual empowers users to confidently diagnose, repair, and maintain their Yamaha outboards, ensuring reliable performance and longevity.