This manual provides comprehensive guidance for the 1986 KXT250-Tecate All-Terrain Vehicle (ATV). Engineered for performance and reliability, this liquid-cooled, 2-stroke ATV features a 250 cc engine and a 6-speed manual transmission with chain drive. It is designed for recreational use and offers a robust platform for exploring various terrains. This Service Repair Manual Supplement is your essential resource for maintaining and repairing your KXT250-Tecate. It covers scheduled maintenance, detailed diagnostics, troubleshooting common issues, and step-by-step procedures for the removal, installation, and overhaul of major components. With clear illustrations, photographs, and diagrams, this manual is intended for both owners performing do-it-yourself repairs and professional technicians seeking accurate technical specifications and repair information.