The Suzuki King Quad LT-F300X and LT-F300FX, representative of the 1999 model year, are mid-size utility All-Terrain Vehicles designed for recreational riders, farmers, and light-duty industrial users. These ATVs are powered by a proven 288cc air-cooled engine paired with an automatic Continuously Variable Transmission (CVT), offering selectable 2WD/4WD with a torque-sensing front differential for enhanced traction. Key features include independent front suspension and swingarm rear suspension for a comfortable ride, hydraulic disc brakes front and rear, and robust front and rear racks for carrying gear. The King Quad nameplate is a symbol of robust performance and utility in the ATV market. This comprehensive 384-page Workshop Service Manual in English provides detailed guidance for the maintenance, repair, and overhaul of the Suzuki King Quad LT-F300X and LT-F300FX. It covers all essential systems, including the engine, fuel system, ignition, transmission, drivetrain, suspension, brakes, and electrical system, offering step-by-step repair instructions, diagnostic charts, and rebuild procedures. The manual also includes essential technical specifications, torque values, and information on specialized tools. Its purpose is to equip owners, mechanics, and technicians with the knowledge necessary to ensure the optimal performance and longevity of their vehicle through proper upkeep and efficient troubleshooting.