This manual covers the 1967 Triumph 350 and 500 Series motorcycles, featuring the renowned Unit Construction Engine (UCE). These parallel-twin, air-cooled machines, produced in Meriden, England, offered a blend of performance and reliability, making them popular for both everyday use and sport touring. The 350cc variants (T100/350) typically produced around 26-30 bhp, while the 500cc models (T100/500) delivered approximately 34-38 bhp, with top speeds reaching up to 90 mph. Known for their robust steel tube frames and effective dual leading shoe drum brakes, these Triumph twins are iconic examples of British motorcycle engineering from the mid-1960s.

This comprehensive factory service manual provides detailed guidance for the full service, repair, rebuild, refurbish, and restoration of your 1967 Triumph 350/500 Series motorcycle. It covers all essential systems, including the engine mechanicals, fuel and ignition systems, transmission and drivetrain, suspension, brakes, electrical system, and chassis. With practical troubleshooting guides and step-by-step procedures for routine maintenance, engine overhauls, carburetor tuning, and electrical diagnostics, this manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the originality and performance of these classic British motorcycles.