The 2009 Thundercat 1000 H2 represents a significant offering in the all-terrain vehicle market, built upon a heritage of performance-oriented off-road vehicles. This model, along with other 2009 ATVs such as the 400 TRV, 500, 550 H1, 700 H1, and their respective variants, are equipped with powerful engines ranging from 400cc to 1000cc, often featuring Electronic Fuel Injection (EFI) and robust chassis designs. Known for their capability in various off-road conditions, these ATVs are engineered for both utility and recreational riding, embodying a commitment to delivering powerful and reliable machines. This comprehensive service and repair manual provides essential information for the maintenance and repair of the 2009 ATV lineup. It covers a wide array of systems, including the engine, transmission (both manual and automatic/CVT), fuel, lubrication, cooling, electrical, drive, suspension, and steering systems. The manual offers detailed, step-by-step instructions for general maintenance, engine overhauls, transmission servicing, fuel system diagnostics, electrical troubleshooting, and component replacement, supported by exploded views and critical torque specifications. This resource is invaluable for DIY enthusiasts, owners, and professional technicians seeking to ensure the optimal performance and longevity of their ATVs.