This workshop service repair manual provides comprehensive information for the ATVs manufactured between 2008 and 2010. These versatile all-terrain vehicles are equipped with a 4-stroke, SOHC, single-cylinder, liquid-cooled engine featuring a 376 cc displacement and carburetor fuel system. They offer an automatic transmission with selectable 2WD/4WD drive systems and a choice of Forward, Neutral, and Reverse gears. Designed for a range of applications, these ATVs are built with renowned engineering quality and reliability, making them a dependable choice for various off-road activities. The purpose of this manual is to serve as an essential guide for owners and technicians alike, ensuring proper maintenance and repair of your ATV. It covers critical areas such as detailed engine specifications, including oil type and capacity, coolant requirements, brake system details, tire sizes, and electrical system information. You will find step-by-step procedures for routine maintenance tasks, troubleshooting common issues, and technical specifications necessary for accurate diagnostics and repairs. This resource is designed to help you keep your LT-A400 or LT-F400 operating at peak performance and longevity.