The Yamaha TZ250, a legendary 250cc two-stroke Grand Prix racing motorcycle, represents a pinnacle of performance engineering. Produced through continuous development until the early 2000s, the 2001 model exemplifies a refined iteration of this iconic machine, known for its competitiveness and the advanced technology integrated for track use. Its parallel-twin, liquid-cooled engine, capable of producing significant horsepower at high RPMs, combined with a lightweight aluminum twin-spar frame and sophisticated suspension, made it a dominant force and a benchmark for privateer racers. The TZ250 is celebrated for its direct handling, exhilarating acceleration, and the pure racing experience it offers.

This comprehensive service manual provides in-depth guidance for the maintenance, repair, and tuning of the Yamaha TZ250. Covering all essential systems from engine disassembly and assembly to drivetrain, chassis, braking, and electrical components, it offers detailed procedures for routine maintenance, complex repairs, and performance optimization. The manual includes crucial technical specifications, troubleshooting guides for common issues, and specific tuning advice for carburetor and ignition systems, all presented with high-resolution diagrams. Its purpose is to equip owners, mechanics, and technicians with the precise knowledge required to keep this high-performance racing motorcycle in peak condition and ensure its continued track-day success.

The Yamaha TZ250, a legendary 250cc two-stroke Grand Prix racing motorcycle, represents a pinnacle of performance engineering. Produced through continuous development until the early 2000s, the 2001 model exemplifies a refined iteration of this iconic machine, known for its competitiveness and the advanced technology integrated for track use. Its parallel-twin, liquid-cooled engine, capable of producing significant horsepower at high RPMs, combined with a lightweight aluminum twin-spar frame and sophisticated suspension, made it a dominant force and a benchmark for privateer racers. The TZ250 is celebrated for its direct handling, exhilarating acceleration, and the pure racing experience it offers.

This comprehensive service manual provides in-depth guidance for the maintenance, repair, and tuning of the Yamaha TZ250. Covering all essential systems from engine disassembly and assembly to drivetrain, chassis, braking, and electrical components, it offers detailed procedures for routine maintenance, complex repairs, and performance optimization. The manual includes crucial technical specifications, troubleshooting guides for common issues, and specific tuning advice for carburetor and ignition systems, all presented with high-resolution diagrams. Its purpose is to equip owners, mechanics, and technicians with the precise knowledge required to keep this high-performance racing motorcycle in peak condition and ensure its continued track-day success.