The 2002 Arctic Cat ZL 800 EFI ESR is a high-performance snowmobile designed for enthusiasts seeking a powerful and reliable machine for trail riding and recreational use. Featuring a liquid-cooled, 794cc parallel-twin two-stroke engine with Electronic Fuel Injection (EFI) and Electric Start with Reverse (ESR), this model offers robust performance and advanced technology for its era. Arctic Cat's heritage in snowmobile innovation is evident in the ZL series, known for its focus on delivering a thrilling and capable riding experience. The engineering quality and attention to detail in this snowmobile ensure a durable and enjoyable operation for its intended purpose. This comprehensive service repair manual provides detailed information for the 2002 Arctic Cat ZL 800 EFI ESR snowmobile. It covers essential maintenance procedures, including routine checks, fluid changes, and component replacements, as well as in-depth troubleshooting guides for identifying and resolving common issues. The manual also offers step-by-step instructions for engine overhauls, drivetrain system repairs, electrical system diagnostics, and chassis maintenance. With clear diagrams and precise specifications, this resource is invaluable for owners and technicians aiming to maintain, repair, and optimize the performance and longevity of their snowmobile.