This comprehensive service manual provides detailed instructions and diagrams for servicing your 1999-2001 Yamaha Phazer 500, Phazer 500 Mountain Lite, Phazer 500 Deluxe, and Venture 500 snowmobiles. It covers all aspects of maintenance and repair, including engine, powertrain, chassis, cooling system, electrical system, and more. The manual is organized into chapters, each focusing on a specific area of the snowmobile. Each chapter begins with an illustration of the system or assembly being discussed, followed by detailed step-by-step instructions for removal, installation, and repair. Exploded parts diagrams, photographs, and troubleshooting guides are included throughout the manual to help you understand each procedure. The manual also includes a detailed maintenance schedule to keep your snowmobile operating in peak condition. With this service manual, you will have the knowledge and tools to diagnose and repair any issue you encounter while maintaining your Yamaha snowmobile.