This comprehensive workshop repair service manual covers Triumph T120 TR and 6T 650cc models manufactured between 1963 and 1970. Providing detailed, step-by-step instructions and illustrations, this manual empowers you to tackle a wide range of maintenance and repair tasks. It's a valuable resource for both experienced mechanics and DIY enthusiasts, offering guidance on troubleshooting, servicing, restoration, rebuilding, and diagnosing your classic Triumph motorcycle.

The manual delves into various critical systems, including lubrication, engine, transmission, gearbox, frame and attachments, wheels, brakes, tires, telescopic fork, and electrical systems. It also provides comprehensive information on essential service tools, ensuring you have the right equipment for the job. This manual is a direct replica of the one utilized by professional technicians and workshops, offering the same level of technical detail and expertise.

The Triumph T120 TR and 6T 650cc models were iconic British motorcycles produced from 1963 to 1970, marking a significant evolution in Triumph's lineup. These machines were known for their powerful 650cc parallel-twin engines, offering a blend of performance and reliability that made them popular among both riders and racers. The T120 TR, primarily designed for road use, featured a comfortable riding position, a plush seat, and a robust chassis that was well-suited for long-distance touring. The 6T, on the other hand, was tailored for scrambles and off-road riding, boasting a high-mounted exhaust, knobby tires, and a lighter overall weight. Both models shared the same engine, a 649cc air-cooled parallel-twin that produced around 40 horsepower. It was known for its smooth power delivery and impressive torque, making it capable of both leisurely cruising and spirited riding.

These Triumphs were equipped with a four-speed gearbox and a chain-driven rear wheel, offering a reliable and efficient powertrain. The T120 TR was offered in various color schemes, from the classic British Racing Green to bolder reds and blues, adding to its appeal. The 6T, being designed for off-road adventures, often came in a more utilitarian livery, usually finished in black or a dull green. Beyond their intended use, both models captured the spirit of the era, with their classic styling and robust construction. The T120 TR was a testament to Triumph's ability to produce comfortable and capable touring machines, while the 6T showcased their expertise in building rugged and fun-to-ride dirt bikes. Their legacy continues to inspire riders today, and these motorcycles remain highly sought-after by collectors and enthusiasts alike.