The Polaris Xplorer 400, produced in 2000, is a capable sport/recreational All-Terrain Vehicle designed for trail riding and moderate utility tasks. It features a robust 2-stroke, single-cylinder engine known for its effective power-to-weight ratio, coupled with an automatic Continuously Variable Transmission (CVT) for user-friendly operation. The vehicle's engineering prioritizes rider comfort and control through independent front suspension and a swingarm rear suspension system, complemented by reliable hydraulic disc brakes on all wheels. As part of Polaris's established lineup, the Xplorer 400 represents a blend of performance and practicality within the ATV market. This comprehensive workshop service repair manual is designed to provide detailed guidance for all Polaris Xplorer 400 models from the year 2000, covering all engine variants, transmissions, and trim levels. It offers extensive information on routine and scheduled maintenance, in-depth troubleshooting guides, and complete engine and transmission rebuild procedures. The manual details service for critical systems including the engine, fuel, cooling, ignition, drivetrain, chassis, suspension, steering, braking, and electrical systems. It also includes specific adjustment procedures, torque values, and identifies any special tools required, making it an indispensable resource for owners, mechanics, and technicians to maintain and repair the vehicle effectively.