This manual covers the Brute Force 650 4x4 ATV, model code KVF650, manufactured between 2005 and 2013. As part of the Brute Force platform, this versatile all-terrain vehicle is powered by a 633cc, liquid-cooled, V-twin engine featuring Digital Fuel Injection (DFI) for optimal performance. It offers selectable 2WD/4WD with a limited-slip front differential, a Constantly Variable Transmission (CVT) with high, low, reverse, neutral, and park gear selections, and a robust chassis designed for both utility and recreational use. Notable features include dual front hydraulic disc brakes, a sealed rear drum brake, electric and recoil starting systems, and a towing capacity of 1250 lbs. This comprehensive Factory Service Repair Workshop Manual provides detailed information essential for maintaining and repairing your Brute Force 650 4x4. It covers all major systems, including general information, periodic maintenance, fuel, cooling, engine, transmission, drivetrain, brakes, suspension, steering, frame, and electrical systems. The manual includes step-by-step repair and maintenance instructions, complete disassembly and reassembly procedures, troubleshooting guides, diagnostic procedures, torque specifications, and electrical system schematics with wiring diagrams. This resource is designed to assist owners and professional technicians in ensuring the optimal performance and longevity of their ATV.