This manual covers the YFZ450S, a high-performance All-Terrain Vehicle (ATV) designed for off-road recreational sport. Engineered with a liquid-cooled, 4-stroke, DOHC, 5-valve engine boasting a 449cc displacement, this ATV delivers exceptional power and responsiveness. Its robust construction and advanced drivetrain, featuring a constant mesh 5-speed transmission and chain drive, are built for demanding terrain. With a seating capacity for one and a wheelbase of 1290 mm (50.8 in), the YFZ450S is a testament to commitment to quality and thrilling off-road experiences.

This comprehensive Factory Service Repair Manual in English provides essential information for maintaining and repairing your YFZ450S. It details crucial maintenance procedures, including recommended oil types and capacities, troubleshooting common issues, and offers in-depth technical specifications. Furthermore, it outlines important safety guidelines to ensure proper operation and longevity of your ATV. This resource is invaluable for owners, mechanics, and technicians seeking to understand and expertly service this powerful off-road machine.