This manual covers the Triumph Bonneville T140V and T140E models, produced from the mid-1970s through the early 1980s. As a classic British motorcycle, the Bonneville is renowned for its air-cooled, parallel-twin, four-stroke 744cc engine, delivering characteristic performance and a distinctive sound. These roadsters represent a significant era in motorcycle history, building upon the legacy of earlier Triumph twins. The T140 series, manufactured in Meriden, England, is celebrated for its iconic styling and robust engineering, offering a blend of classic appeal and functional design.

This factory service repair workshop manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of your Triumph Bonneville. It details procedures for all major systems, including the engine, fuel, ignition, transmission, brakes, suspension, and electrical systems. With factory-level detail, this manual is an essential resource for owners and technicians alike, ensuring the longevity and optimal performance of your T140V or T140E. It covers everything from routine servicing and adjustments to complete engine and gearbox overhauls, offering clear instructions and diagnostic support.