This comprehensive Factory Service Repair Manual provides all the essential information you need to service and repair your 1958-1959 Harley Davidson Duo Glide motorcycle. The manual covers a wide range of topics, from basic maintenance procedures to complex engine and transmission repairs, ensuring you have the knowledge to handle any repair or maintenance task. Detailed diagrams, illustrations, and step-by-step instructions make it easy to understand and follow, even for novice mechanics.

The manual includes detailed information on:

* **Engine:** Covers engine disassembly, rebuild, and troubleshooting, including information on the valve train, lubrication system, ignition system, and more.
* **Transmission:** Includes sections on gearboxes, clutches, and shifting mechanisms, providing guidance on repair, adjustment, and maintenance.
* **Electrical System:** Explains the entire electrical system, including wiring diagrams, troubleshooting guides, and repair instructions for components like the starter, alternator, and lighting system.
* **Chassis and Suspension:** Provides detailed instructions for inspecting, adjusting, and repairing the chassis, suspension components, brakes, and steering mechanisms.
* **Bodywork:** Covers the repair and maintenance of the motorcycle's body panels, seats, and other external components.

With this manual, you'll have everything you need to keep your Harley Davidson Duo Glide in top condition, saving time and money on repairs.

The Harley-Davidson Duo Glide, produced from 1958 to 1959, marked a significant turning point in the history of the iconic American motorcycle brand. It was the first Harley-Davidson model to feature a fully-enclosed telescopic front fork, a revolutionary innovation that significantly improved rider comfort and handling. This new design, dubbed the "Hydra-Glide," not only provided smoother rides but also made the Duo Glide more stable at higher speeds. The Duo Glide was further equipped with a powerful 74 cubic inch (1210 cc) "Panhead" V-Twin engine, known for its reliability and smooth power delivery. This combination of innovative suspension and robust engine cemented the Duo Glide's status as a groundbreaking motorcycle, setting the stage for future Harley-Davidson models.

The 1958 Duo Glide was available in several different configurations, including a standard model known as the "FL," a "FLH" model with a full-dress fairing and a "FLHS" model with a "highway" fairing and a small windshield. These variations provided riders with choices based on their preferences for styling and functionality. The 1959 Duo Glide saw some minor refinements, with improvements to the front brake system and refinements to the overall design. Although production ceased in 1959, the Duo Glide's legacy lived on, influencing subsequent Harley-Davidson motorcycles and solidifying the brand's reputation for innovation and performance. These motorcycles, with their distinctive "Panhead" engine and iconic styling, remain highly sought-after by collectors and enthusiasts today, representing a pivotal moment in the evolution of the Harley-Davidson brand.