This manual covers Harley-Davidson motorcycles produced between 1940 and 1947, including models such as the E, EL, F, FL, U, UL, W, WL, WR, and WLA. These iconic machines are celebrated for their robust engineering, reliable V-twin engines, and enduring presence in motorcycling history. Designed for both civilian use and significant military service during World War II, these Harley-Davidson models represent a pivotal era in the brand's development, offering a blend of performance and durability that continues to be appreciated by enthusiasts and collectors.

This comprehensive service and repair manual provides detailed information for all major mechanical and electrical systems. It includes procedures for engine disassembly, assembly, and tuning; transmission and clutch servicing; ignition and fuel system maintenance; brake system repair; and electrical system diagnostics. With in-depth coverage, detailed diagrams, and essential specifications, this manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, restore, and ensure the optimal performance and longevity of their vintage Harley-Davidson motorcycles.