This manual covers the Wolverine 350 and 400 All-Terrain Vehicles (ATVs) manufactured between 2003 and 2009. These vehicles have a long-standing reputation for producing robust and reliable ATVs, and the Wolverine line is recognized for its versatility and capable performance across various terrains. These sport-utility ATVs are designed for a wide range of applications, from recreational trail riding to demanding work tasks. The engineering quality and reliability of these models are a testament to a commitment to producing durable and high-performing off-road vehicles. This comprehensive workshop and service manual provides in-depth, professional-quality guidance for maintaining and repairing your Wolverine ATV. It covers all essential systems, including the engine, fuel system, cooling system, ignition system, exhaust, transmission, drivetrain, suspension, brakes, steering, and electrical system. Detailed procedures for general maintenance, troubleshooting, component disassembly and assembly, and torque specifications are included. With this manual, owners and technicians can confidently perform all necessary service and repair tasks, ensuring the longevity and optimal performance of their vehicle while potentially saving on dealership costs.