This comprehensive workshop service repair manual provides in-depth instructions for maintaining and repairing your AJS Heavyweight 500 cc motorcycle, covering models from 1957 to 1966. The manual assumes a basic understanding of general automotive practices and emphasizes the unique aspects of the AJS Heavyweight 500 cc. It is designed to help you achieve professional-level service and build a reputation for quality workmanship. The manual covers a wide range of topics, including tune-ups, maintenance procedures, removal and installation instructions, assembly and disassembly guides, and detailed information on specific systems. These systems include the fuel system, ignition system, lubrication system, exhaust system, electrical system, and body. You'll find extensive guidance on engine and transmission disassembly, along with numerous illustrations and diagrams to assist you with every step. The manual also includes instructions for proprietary components, incorporating relevant information from the original manufacturers. This ensures you have a complete understanding of each component's function and its role within the overall vehicle performance. By referencing this manual, you will have the knowledge and confidence to perform repairs with the same expertise as a professional automotive technician.

The AJS Heavyweight 500, produced from 1957 to 1966, was a testament to the enduring legacy of the renowned British motorcycle manufacturer, AJS. It was a powerful and versatile machine, designed to tackle a wide range of riding conditions, from commuting on city streets to embarking on long-distance touring adventures. The Heavyweight 500 represented the company's shift towards more modern and practical designs, incorporating features that enhanced rider comfort and performance. It featured a robust, single-cylinder, four-stroke engine with a displacement of 498cc, known for its reliable and smooth operation. Power delivery was linear and predictable, making it a suitable companion for both experienced riders and those seeking a comfortable and easy-to-handle machine. The Heavyweight 500's frame was a sturdy double-loop cradle design, providing a solid foundation for its 175kg weight. It was paired with a telescopic front fork and a swinging arm rear suspension, delivering a balanced ride quality. The motorcycle's styling was clean and functional, with a classic AJS aesthetic. Its chrome accents and polished aluminum components gave it a timeless appeal. The Heavyweight 500 was offered in various versions, including roadsters, scramblers, and even a sidecar model, catering to the diverse needs of its target audience. It became a popular choice for riders who valued the blend of performance, reliability, and timeless style that it offered. Today, the AJS Heavyweight 500 remains a sought-after classic motorcycle, cherished by enthusiasts for its historical significance and enduring charm. Its sturdy construction, reliable engine, and comfortable riding position make it a rewarding machine to own and ride, exemplifying the legacy of British motorcycle engineering at its finest.