This manual covers the 2009 Trail Boss 330 and Trail Blazer 330, known for their capable 330cc liquid-cooled engines and automatic transmissions. The Trail Boss is recognized for its comfortable ride and robust chassis, making it a popular choice for recreational trail riding. The Trail Blazer typically offers a sportier, more agile experience within the same platform. Both models represent a commitment to delivering reliable and enjoyable off-road vehicles, building on an extensive history in powersports. This comprehensive workshop service and repair manual provides detailed instructions for maintenance, diagnostics, and repair procedures. It covers essential systems including the engine, fuel system, body, steering, suspension, clutch, final drive, transmission, brakes, and electrical components, complete with wiring diagrams. The manual is designed to assist owners, mechanics, and technicians in keeping their ATVs in optimal condition, ensuring longevity and performance through step-by-step guidance and technical specifications.