This comprehensive service and repair manual, designed specifically for the 1985 and 1985.5 Yamaha Tri-Z 250 two-stroke trike, offers a detailed guide for complete tear down and rebuild processes. It provides clear instructions and detailed illustrations for every step, ensuring a smooth and efficient repair experience. The manual includes a vast array of information, covering everything from torque specifications and maintenance schedules to troubleshooting guides and comprehensive part diagrams. You'll find in-depth coverage of essential components such as the engine, transmission, suspension, brakes, and electrical system. With its searchable functionality and clickable chapters, locating the information you need is effortless. This manual is an indispensable resource for anyone seeking to maintain, repair, or restore their 1985 or 1985.5 Yamaha Tri-Z 250.