This comprehensive service repair manual covers the 1958-1964 Harley-Davidson FL and FLH Duo-Glide 74 OHV Panhead motorcycles. It is designed to guide you through the fundamentals of repairing and maintaining these iconic machines, providing detailed instructions and illustrations to help you perform tasks efficiently.

The manual offers step-by-step procedures for every aspect of repair and maintenance, including disassembly, assembly, cleaning, and reinstalling. It also contains critical specifications, detailed illustrations, and essential maintenance procedures. This manual is an invaluable resource for both do-it-yourselfers and experienced mechanics, providing the knowledge and expertise you need to keep your Harley-Davidson running smoothly.

The 1958-1964 Harley-Davidson FL and FLH Duo-Glide 74 OHV Panhead SRM, often referred to as simply the "Panhead," was a significant leap forward in Harley-Davidson's history. This motorcycle series marked the introduction of the iconic Panhead engine, a marvel of engineering that replaced the previous Knucklehead design. The 74 cubic inch (1210 cc) V-twin engine, with its distinctive "pan" shaped rocker boxes, boasted increased power and smoother operation compared to its predecessor. The Duo-Glide name, meanwhile, highlighted the revolutionary addition of a hydraulically dampened rear suspension, a first for Harley-Davidson, which vastly improved rider comfort and handling. The FL model, generally known as the "Hydra-Glide," featured a rigid rear frame, while the FLH, often called the "Duo-Glide," was equipped with the new rear suspension.

This era of Panheads saw the emergence of iconic features that would define Harley-Davidson for years to come. The distinctive teardrop-shaped gas tank, the "suicide" shifter, the exposed springer front forks, and the signature "potato" style exhaust pipes all became synonymous with the Panhead era. The 1958-1964 Panhead bikes were offered in a variety of models, including the FL (standard), FLH (with rear suspension), and FX (factory-modified performance models). These bikes became popular for their classic styling, reliable performance, and powerful engine. They were favoured by enthusiasts and attracted a growing community of "chopper" builders, who sought to customize and personalize their bikes, resulting in a unique and lasting cultural impact. The Panhead era cemented Harley-Davidson's position as a global icon, paving the way for future generations of innovative and sought-after motorcycles.