This manual covers the models from the 2012 model year. Yamaha has a long-standing reputation for producing robust and reliable off-road vehicles, and the Grizzly line is known for its durability and capability. These ATVs feature single-cylinder, liquid-cooled, 4-stroke engines with SOHC and 4 valves, utilizing Fuel Injection for efficient delivery. The transmission is a Constant-Velocity Transmission with an Ultramatic® automatic system, offering selectable 2WD/4WD modes and, on select models, Electric Power Steering (EPS) for enhanced maneuverability. This comprehensive service repair manual provides factory-level information for technicians, mechanics, and owners. It details general maintenance, troubleshooting procedures, and repair instructions for all major components and systems, including the engine, transmission, brakes, electrical systems, suspension, and fuel system. The manual also includes detailed wiring diagrams, periodic lubrication schedules, and technical data. It is designed to assist users in maintaining and repairing their Grizzly, offering access to crucial information for efficient upkeep and problem resolution.