This manual covers the Trail Blazer 330, Trail Boss 330, and Scrambler 500 HO models produced for the 2011 and 2012 model years. These ATVs are renowned for their reliable performance, ease of maintenance, and versatility, making them suitable for both trail riding and utility tasks. A pioneer in the ATV industry, these vehicles were engineered with robust components and a focus on durability, positioning them as competitive options in the utility and recreational ATV market. The VIN prefix for these vehicles is 4PF. This comprehensive workshop manual provides detailed information for the maintenance, repair, and troubleshooting of your ATV. It covers all major systems, including the engine, fuel system, transmission, electrical system, steering, suspension, brakes, and bodywork. Within its extensive pages, you will find step-by-step instructions for routine maintenance, component overhaul, and repair procedures, alongside essential technical specifications such as torque values and fluid capacities. The manual also includes diagnostic charts to help identify and resolve common issues, ensuring your ATV remains in optimal condition and minimizing downtime.