The Big Bear 350 4X4, produced between 1997 and 1999, is a versatile All-Terrain Vehicle (ATV) renowned for its durability and capability in various conditions. Built upon a strong legacy of producing reliable and robust off-road machines, this model features a 4-stroke, SOHC, air-cooled 348 cc engine with a 5-speed manual transmission and automatic clutch, designed for utility and trail riding. Its rugged construction, coupled with features like selectable 2WD/4WD and hydraulic disc brakes, makes it a dependable choice for demanding tasks and recreational use. This Professional Service & Repair Manual provides comprehensive guidance for the Big Bear 350 4X4 (model code YFM350F) for the 1997, 1998, and 1999 model years. It covers all essential aspects of the vehicle, including detailed engine overhaul, transmission service, drivetrain maintenance, suspension, brakes, and the electrical system. The manual offers step-by-step instructions for routine maintenance, troubleshooting common issues, and performing complex repairs, supported by high-resolution diagrams and exploded views, empowering owners and technicians to effectively maintain and repair their ATVs.