Part No – 99.0883/0889
Triumph Workshop Manual Unit Construction 650 1963/70
The official factory workshop manual for the Triumph Unit Construction 650cc Twins is part number 99-0883/0889. This manual is the essential technical guide for maintaining and rebuilding the 650cc engines starting from serial number DU101 through to the end of 1970 production.
This combined volume merges the original 99-0883) with the 99-0889) to cover all models in this eight-year production run.
Models Covered:
Triumph T120 Bonneville (including T120R and T120C),
TR6 Trophy (TR6R and TR6C), and the 6T Thunderbird (up to 1966).
Technical Content: Contains approximately 230–250 pages with over 250 illustrations, including technical measurements, exploded views, and nine different wiring diagrams for various ignition systems.
Running Changes: Because it covers a long period, it details significant transitions such as the change from 6-volt to 12-volt electrics and the 1968 introduction of Amal Concentric carburettors and twin-leading shoe front brakes.
This combined volume merges the original 99-0883) with the 99-0889) to cover all models in this eight-year production run.
Models Covered:
Triumph T120 Bonneville (including T120R and T120C),
TR6 Trophy (TR6R and TR6C), and the 6T Thunderbird (up to 1966).
Technical Content: Contains approximately 230–250 pages with over 250 illustrations, including technical measurements, exploded views, and nine different wiring diagrams for various ignition systems.
Running Changes: Because it covers a long period, it details significant transitions such as the change from 6-volt to 12-volt electrics and the 1968 introduction of Amal Concentric carburettors and twin-leading shoe front brakes.
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