This manual covers the KLX140 and KLX140L models from the 2008 to 2011 model years. These versatile off-road motorcycles are built upon a strong heritage in dirt bike manufacturing, offering a reliable and enjoyable riding experience for recreational and younger riders. Engineered with a 4-stroke, air-cooled, 144cc engine, they provide accessible power and responsive handling. The KLX140 and KLX140L are designed for trail riding and general off-road use, featuring durable chassis components, effective suspension systems, and essential safety features like disc brakes. This comprehensive repair manual provides detailed information for the maintenance, troubleshooting, and repair of your KLX140 or KLX140L. It covers all major systems, including the engine, fuel system, transmission, suspension, steering, and electrical system. Within its pages, you will find step-by-step procedures for routine maintenance, adjustments, and more complex repairs, along with valuable technical specifications and diagnostic guidance. This manual is an essential resource for owners and technicians aiming to keep these motorcycles in optimal condition.