Triumph 650cc Twin Cylinder Workshop Manual from Engine KE 00001 PDF Download

Description

File Details

• Manual Type: Workshop Manual
• Brand: Triumph
• Models: 650 cc twin cylinder (T120R, T120RV, TR6R, TR6RV, TR6C, TR6CV and export variants)
• Language: English
• Page Count: 210
• File Format: PDF
• Publication: Part No. 99-0947, Published January 1972
• From Engine No.: KE 00001

Models Covered

This manual applies to the Triumph 650 c.c. (40 cu. in.) twin-cylinder models commencing at engine number KE 00001. Covered machines include the T120R Bonneville, T120RV Bonneville 5-speed, TR6R Tiger 650, TR6RV Tiger 650 5-speed, TR6C Trophy 650, TR6CV Trophy 650 5-speed and the corresponding Home and General Export versions.

Chapters Covered

• General Data (GD) – complete specifications, clearances, capacities, torque settings and ratios for all models
• Lubrication System (A) – oil pump, pressure release valve, oil pressure switch, scavenging and pressure circuits
• Engine (B) – cylinder head, rocker boxes, valves, pistons, connecting rods, crankshaft, camshafts, timing, primary drive and clutch
• Transmission (C) – primary chain, clutch assembly, shock absorber
• Gearbox (D) – 4-speed gearbox strip, examination and rebuild
• Gearbox 5-Speed Only (DV) – dedicated section for the 5-speed unit
• Frame & Attachment Details (E) – frame, swinging arm, rear suspension, stands, controls
• Wheels, Brakes & Tyres (F) – hubs, brake shoes, drums, spokes, tyres and security bolts
• Telescopic Fork (G) – fork legs, stanchions, dampers, seals and assembly
• Electrical System (H) – wiring, alternator, battery, lighting, ignition and switches
• Service Tools (J) – illustrated special tools required for the work
• Conversion Charts (CT)

Each major section is organised in the logical order of strip-down, examination of components against the General Data figures, and rebuilding. The General Data section supplies every critical dimension, clearance, torque figure and capacity needed during overhaul.

Key Technical Data

• Bore × stroke: 71 × 82 mm
• Capacity: 649 cc (40 cu. in.)
• Compression ratio: 9 : 1
• Oil tank capacity: 4 pints (2.27 litres)
• Gearbox capacity: ½ pint (300 cc)
• Primary chaincase (initial fill): ½ pint (350 cc)
• Fork leg capacity: ½ pint (200 cc) each
• Fuel tank: 3 gallons (3½ US gal standard, 4½ US gal optional)
• Unladen weight: 382 lb (173 kg)
• Wheelbase: 55 in (140 cm)

Service Procedures

The engine section walks through cylinder-head removal, valve servicing, piston and ring examination, big-end and main-bearing inspection, camshaft and timing gear work, and complete crankcase separation. Torque figures for flywheel bolts, connecting-rod bolts, cylinder-head bolts and rocker-box fasteners are listed in General Data and referenced throughout the rebuild sequences.

Transmission and gearbox sections cover clutch plate inspection, primary-chain tension, mainshaft and layshaft bearing renewal, selector-fork examination and the differences between 4-speed and 5-speed gearboxes. Frame, wheel and fork sections provide the dimensions and procedures needed to keep the chassis and running gear within original tolerances.

Electrical and Lubrication Coverage

The electrical section includes alternator and rotor work, ignition timing, lighting circuits and component diagnosis. The lubrication system chapter details the twin-plunger oil pump, pressure-release valve settings (60 lb/sq in release, 65–80 lb/sq in normal running) and the oil-pressure switch operating range.

Why This Manual Matters

Accurate clearances, correct torque values and the proper sequence of assembly are essential when working on a classic Triumph twin. This workshop manual supplies the factory General Data figures, the illustrated strip-and-rebuild sequences and the service-tool list that allow a technician or owner to restore engine, gearbox, forks and electrical systems to the original design intent. Instant PDF download after payment; readable on any device and printable for the workshop bench.