The Grizzly 350/400 YFM 2WD, produced from 2003 to 2012, represents a capable line of all-terrain vehicles renowned for their off-road prowess and comfort. The long-standing reputation for producing reliable and durable ATVs is evident in these models, which offer a blend of performance suitable for various terrains. These ATVs typically feature robust single-cylinder, four-stroke engines, automatic transmissions with high/low range and reverse, and hydraulic disc brakes for dependable stopping power. The Grizzly series is a testament to engineering quality, designed to provide an enjoyable and dependable riding experience for enthusiasts. This comprehensive shop service repair manual provides essential information for technicians, mechanics, and owners to maintain and repair the Grizzly 350/400 YFM 2WD models from 2003-2012. It covers a wide array of systems including engine, transmission, brake, electrical, cooling, fuel, suspension, and chassis. Detailed procedures for general maintenance, troubleshooting, diagnostics, repair, overhaul, and assembly/disassembly are included, along with wiring diagrams and technical specifications. This English-language manual is designed to offer complete factory service repair information, ensuring the longevity and optimal performance of your vehicle.