This workshop service repair manual covers Briggs & Stratton Twin Cylinder L-Head Engines produced between 1999 and 2009. These air-cooled, carbureted engines are known for their robust construction and reliability, powering a wide range of machinery and equipment. The engine family typically ranges from 8 HP to over 25 HP, with displacements commonly falling between 250cc and 1000cc or more, designed for demanding applications. This comprehensive English-language manual provides detailed information essential for maintaining and repairing your Briggs & Stratton Twin Cylinder L-Head Engine. It includes step-by-step instructions for engine overhaul, troubleshooting guides for common issues, and specific procedures for the fuel, ignition, and starter systems. Additionally, it covers scheduled maintenance, lubrication requirements, and adjustments for components like the carburetor and valves, ensuring optimal performance and longevity.