This manual covers the AJS 16M, 16MS, 16MC, 16MCS, 18, 18S, 18C, and 18CS models from 1954. These British middleweight motorcycles are powered by reliable 350cc and 500cc OHV vertical twin engines and are known for their robust construction, versatility for everyday use, and suitability for clubman racing. The AJS marque, founded in 1909, built a reputation for sporting and reliable machines, with these models representing mid-production refinements of their successful post-war designs. They competed with other prominent British motorcycles of the era and were praised for their strong engines, comfortable ride, and good handling.

This comprehensive Service and Maintenance Manual provides detailed guidance for the upkeep and repair of your AJS motorcycle. It covers essential areas including complete engine overhaul, gearbox maintenance, clutch service, suspension and brake adjustments, electrical system troubleshooting, fuel system tuning, and lubrication procedures. The manual includes routine maintenance schedules, diagnostic guides for common issues, and step-by-step instructions for component rebuilds and adjustments. Its depth of information is suitable for professional mechanics and advanced enthusiasts alike, ensuring the continued performance and longevity of your vintage AJS machine.