The Harley-Davidson 42WLA, also known as the WLA Liberator, is an iconic military motorcycle produced between 1942 and 1945. Developed from civilian models, this robust machine was engineered to meet the demanding requirements of military service during World War II, serving with Allied forces worldwide. Its design emphasizes durability and reliability, making it a capable platform for reconnaissance, dispatch, and troop movement. The 42WLA features a 737 cc (45 cubic inches) flathead V-twin engine, a 3-speed transmission, and a sturdy steel frame, all contributing to its reputation for dependable performance in challenging conditions.

This manual serves as a comprehensive guide for the solo operation and maintenance of the Harley-Davidson 42WLA. It covers essential areas including routine maintenance procedures, detailed troubleshooting steps, and in-depth repair instructions for all major systems, such as the engine, transmission, clutch, fuel, ignition, and electrical systems. Technical specifications, safety guidelines, and specific procedures for common maintenance tasks are also included. This resource is designed to assist owners, restorers, and technicians in preserving the functionality and historical integrity of this significant military motorcycle.