This comprehensive repair manual provides detailed instructions and diagrams for servicing and repairing your Yamaha ATV, specifically the 2004-2007 YFM350A Bruin/Grizzly 2WD and 2004-2007 YFM350FA Bruin/Grizzly 4WD models, as well as the 2004-2007 YFM400FA model. The manual covers a wide range of topics, including general information, specifications, periodic checks and adjustments, chassis, engine, cooling system, fuel injection system, electrical system, troubleshooting, and wiring diagrams. With hundreds of pages of detailed information and illustrations, this manual is the same one used by professional mechanics to service and repair these Yamaha ATV models. It contains all the information you need to perform any repair or maintenance task, from basic tune-ups to complex engine overhauls. This manual is an invaluable resource for any owner who wants to keep their ATV running smoothly and efficiently.