This manual covers the Triumph Bonneville T140V and T140E models, iconic British motorcycles produced primarily from the late 1970s through the early 1980s in Meriden, England. Powered by a 744 cc air-cooled, parallel-twin OHV engine, these motorcycles are known for their distinctive styling and the legacy of the Triumph brand. The Bonneville line, evolving from the earlier T120, represents a significant chapter in motorcycle history, offering a classic riding experience for enthusiasts and collectors.

This comprehensive shop and service manual provides in-depth technical information for the maintenance, repair, and troubleshooting of your Triumph Bonneville. It details procedures for all major systems, including the engine, transmission, chassis, and electrical components, with clear diagrams and specifications. Whether you are performing routine servicing, component rebuilds, or diagnosing complex issues, this manual serves as an essential resource for owners and technicians alike, empowering you to keep your classic Triumph in optimal condition.