This manual covers the All-Terrain Vehicles (ATVs), models YFM550F and YFM700F. These ATVs have a distinguished legacy in building durable and capable ATVs, with the Grizzly line recognized for its off-road prowess, comfort, and unwavering reliability. These ATVs are engineered with powerful, liquid-cooled, fuel-injected engines, an automatic Ultramatic® transmission with engine braking, and Electronic On-Command® selectable 2WD/4WD with a differential lock. With substantial towing capacities and robust front and rear rack capabilities, the Grizzly series is designed for demanding utility and recreational use, consistently praised for its performance and longevity. This comprehensive service and repair manual provides detailed, step-by-step instructions and diagnostic procedures for DIY enthusiasts and professional mechanics alike. It covers all essential systems, including engine management (fuel, ignition, cooling, exhaust), drivetrain, chassis, suspension, braking, and electrical components. The manual details routine maintenance, engine overhauls, transmission servicing, and component replacements, supported by detailed illustrations and torque specifications. Its intuitive, searchable format ensures efficient access to information, enabling owners and technicians to effectively maintain, troubleshoot, and repair their Grizzly ATVs, thereby saving on service costs and ensuring optimal performance.