1969 Triumph Tiger 100, Tiger 90, Speed Twin & 3TA Workshop Manual

Triumph Tiger and Speed Twin Technical Manual

• Covers 1957–1974 Triumph 350 c.c. and 500 c.c. unit-construction twin-cylinder motorcycles including the Tiger 100, Tiger 90, 5TA, 3TA, and Daytona variants
• Original OEM publication including engine number H65573 build-state specifications
• Contains 40 exploded-view assembly diagrams and comprehensive torque tables covering every major fastener from cylinder head nuts to crankshaft flywheel bolts
• No shipping wait — the PDF is available immediately after purchase
• Indexed PDF search covers every chapter and appendix
• Suitable for printing individual sections for shop-floor use
• This specific edition provides the 1969 technical standard for unit twins, featuring critical adjustments for the later T100S, T100T, T100C, and T100R configurations

Engine and Lubrication Walkthrough

This factory manual outlines the unit-construction architecture shared across the Triumph twin-cylinder range. The structure begins with comprehensive lubrication system data, detailing the dry-sump setup, oil pump pressure regulation, and routine maintenance intervals for the engine, gearbox, and primary chaincase. Detailed sections guide the reader through the removal and assembly of the engine unit, rocker boxes, and cylinder head, complemented by clear descriptions of valve timing and carburetor setup for both single and twin-carburetor arrangements.

Specification and Data Reference

Technical data is provided in structured tables, including piston clearances, valve seat angles, and timing gear alignment specifications for various model years and serial-number ranges. Crankshaft assembly notes detail the balance weights and oil tube servicing requirements for these engines. Additional documentation includes reference values for head race ball bearings, telescopic fork oil capacities, and wiring system details for Lucas 12-volt equipment. The document serves as the authoritative factory reference for maintaining the Triumph 500 c.c. and 350 c.c. unit twins. Note: Reference only — always consult a certified technician before performing service on this equipment. A complete 251-page official Triumph OEM workshop manual covering the 1957–1974 range of unit-construction 350 c.c. and 500 c.c. twins, documenting engine, gearbox, frame, and electrical specifications for the entire H65573-series build.