This manual covers the Magnum 500 and Sportsman 500 All-Terrain Vehicles (ATVs) from model years 1999 and 2000. These vehicles are renowned for their robust engineering, powerful 499cc liquid-cooled engines, and capable chassis, making them ideal for a wide range of utility and recreational purposes. With features like the Variable Transmission (PVT) and available On-Demand All-Wheel Drive, these ATVs offer a blend of performance and reliability that has solidified the company's position in the powersports market. The design prioritizes durability and user experience, ensuring these machines can handle demanding terrain and tasks. This comprehensive factory service and repair manual provides in-depth information essential for maintaining and repairing your Magnum or Sportsman 500. It details procedures for all major systems, including engine overhaul, drivetrain, suspension, braking, and electrical systems. You will find step-by-step instructions for routine maintenance, troubleshooting common issues, and performing complex repairs, supported by detailed diagrams and critical torque specifications. This manual is an indispensable resource for owners, technicians, and enthusiasts seeking to ensure their ATV operates at peak performance and longevity.