The Yamaha YZF600RJ, also known as the Thundercat, is a performance-oriented sportbike produced from 1997 to 2006. This model is recognized for its balanced handling, accessible power delivery, and a design philosophy that prioritizes both performance and rider comfort within the supersport segment. Its 599 cc, 4-stroke, liquid-cooled inline-four engine, paired with a 6-speed transmission, offers an engaging riding experience suitable for both spirited road riding and track day enthusiasts. The Thundercat has been lauded for its competent chassis, capable suspension, and effective braking system, making it a competitive option against other sportbikes of its era.

This comprehensive service manual provides detailed information for the maintenance, repair, and troubleshooting of all RJ model variants. Covering over 500 pages, it delves into every major system, including the engine, fuel, ignition, transmission, chassis, suspension, brakes, and electrical systems. Owners, mechanics, and technicians will find step-by-step procedures for routine maintenance, in-depth diagnostic guides for common issues, and technical specifications necessary for accurate repairs and adjustments. The manual is presented in English and is designed to be a complete resource for ensuring the optimal performance and longevity of your Yamaha YZF600RJ Thundercat.