The 2013 400 ATV is a mid-size utility vehicle designed for versatile performance, trail riding, and light work tasks. Known for its robust chassis, comfortable ergonomics, and reputation for durability, this model offers capable performance comparable to other leading brands in its segment. Key features include a liquid-cooled, single-cylinder engine, a Continuously Variable Transmission (CVT) with Hi/Lo range and Reverse, and a selectable 2WD/4WD drive system. With a focus on accessible maintenance and reliable operation, the 2013 400 stands as a practical choice for recreational and utility users. This comprehensive repair manual provides essential information for maintaining and servicing the 2013 400 ATVs, excluding TRV models. It covers a wide range of topics, from general information and routine maintenance to advanced troubleshooting and engine overhauls. Key areas include detailed procedures for engine removal and installation, fuel and lubrication systems, transmission, steering, electrical systems, and body work. The manual is designed to assist both owners and professional technicians in performing diagnosis, repair, adjustment, and inspection, ensuring the longevity and optimal performance of the vehicle.