The Yamaha FZR400, produced in 1990 under the chassis code 3TJ, represents a significant entry in the middleweight sportbike class. Designed with a focus on performance and agile handling, it features a lightweight, high-revving inline-four engine and a sophisticated chassis engineered for both track-day capability and everyday road use. This model embodies Yamaha's heritage of producing innovative and high-performance motorcycles, offering enthusiasts a sporty and engaging riding experience that competed directly with other leading sportbikes of its era. Its design philosophy emphasizes a balance of power, responsiveness, and rider feedback, making it a sought-after machine for those who appreciate precise engineering and dynamic performance.

This comprehensive Service Repair Manual in English provides detailed guidance for the maintenance, repair, and troubleshooting of the Yamaha FZR400. It covers all essential systems, including the engine, fuel, ignition, transmission, drivetrain, suspension, braking, electrical, cooling, and exhaust systems, along with frame and bodywork. The manual includes step-by-step repair procedures, disassembly and reassembly instructions, routine maintenance schedules, and critical technical specifications such as torque values and fluid capacities. Its depth is suitable for both experienced mechanics and DIY enthusiasts, offering diagnostic procedures and solutions for common issues, ensuring the longevity and optimal performance of the vehicle.