The 2000 Yamaha WR400 is a high-performance off-road motorcycle, designed for competition and demanding enduro riding. This model represents a significant advancement in Yamaha's 4-stroke off-road motorcycle development, building upon the legacy of their championship-winning YZ series. Known for its powerful liquid-cooled, 4-stroke, single-cylinder engine with DOHC and 5-valve technology, the WR400 delivers approximately 45-50 horsepower. Its robust construction, including a high-tensile steel perimeter frame and advanced Kayaba suspension, ensures durability and performance in challenging terrain. The WR400's engineering prioritizes rider control and feedback, offering a competitive edge through its potent engine and agile handling.

This official OEM service shop manual provides comprehensive guidance for the maintenance, repair, and diagnostics of the 2000 Yamaha WR400. Covering all essential systems from the engine and fuel system to the transmission, brakes, and electrical components, this manual is an indispensable resource for owners and technicians. Detailed procedures for routine maintenance, troubleshooting common issues, and complete component overhauls are included. With clear instructions and technical specifications, this manual empowers users to ensure the optimal performance, reliability, and longevity of their WR400 motorcycle.

The 2000 Yamaha WR400 is a high-performance off-road motorcycle, designed for competition and demanding enduro riding. This model represents a significant advancement in Yamaha's 4-stroke off-road motorcycle development, building upon the legacy of their championship-winning YZ series. Known for its powerful liquid-cooled, 4-stroke, single-cylinder engine with DOHC and 5-valve technology, the WR400 delivers approximately 45-50 horsepower. Its robust construction, including a high-tensile steel perimeter frame and advanced Kayaba suspension, ensures durability and performance in challenging terrain. The WR400's engineering prioritizes rider control and feedback, offering a competitive edge through its potent engine and agile handling.

This official OEM service shop manual provides comprehensive guidance for the maintenance, repair, and diagnostics of the 2000 Yamaha WR400. Covering all essential systems from the engine and fuel system to the transmission, brakes, and electrical components, this manual is an indispensable resource for owners and technicians. Detailed procedures for routine maintenance, troubleshooting common issues, and complete component overhauls are included. With clear instructions and technical specifications, this manual empowers users to ensure the optimal performance, reliability, and longevity of their WR400 motorcycle.