1 1

Triumph

TRIUMPH T120 TR and 6T 650cc models 1963 1964 1965 1966 1967 1968 1969 1970 Motorcycle Workshop Repair Service Manual

TRIUMPH T120 TR and 6T 650cc models 1963 1964 1965 1966 1967 1968 1969 1970 Motorcycle Workshop Repair Service Manual

$16.99
$16.99
Promotion Épuisé
Frais d'expédition calculés à l'étape de paiement.
Vehicle data plateRef 490380
Brand
Triumph
Vehicle
Motorcycle
Models covered
6T 650cc, T120 TR, TR Models
Years
1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you — re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your model year? Ask us before you buy
🏷️ Basic Information
Identification
Make:
Triumph
Model:
T120 Bonneville, TR6 Trophy, 6T Thunderbird
Engine Displacement:
650cc
Covered Years:
1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970
Country Of Origin:
United Kingdom
👋 Introduction
Market Position
Target Audience:
Triumph T120 TR and 6T 650cc owners, DIY enthusiasts, professional mechanics, restoration specialists.
Historical Significance:
Covers iconic British motorcycles known for their parallel-twin engines and classic styling, popular in the 1960s and early 1970s.
Competitive Analysis
Value Proposition:
Provides comprehensive technical information, enabling cost savings on maintenance and repairs for owners of these vintage machines.
Key Features
Instruction Style:
Clear, step-by-step instructions with illustrations.
Data Source:
Original manufacturer's manual, used by professional technicians.
📋 Manual Details
Coverage Areas
Manual Type:
Workshop Repair Service Manual
Page Count:
238
Language:
English
Format:
Digital Download (PDF, ZIP, RAR, EXE)
Delivery Method:
Instant Download
📖 Manual Coverage
Systems Covered
Engine Mechanical:
Complete overhaul, disassembly, inspection, assembly of engine components, including pistons, rings, connecting rods, crankshaft, camshaft, valves, valve guides, valve seats, timing gears, and oil pump.
Fuel System:
Carburetor servicing (e.g., Amal Monobloc, concentric), fuel tank, fuel lines, fuel filters, fuel petcocks.
Lubrication System:
Oil pump operation, oil pressure, oil filter (if applicable), oil change procedures, oil capacity.
Transmission:
Gearbox overhaul, clutch operation, gear selection mechanism, primary drive, lubrication.
Frame And Attachment Details:
Frame inspection, welding, alignment, suspension mounting points, seat mounting, mudguards, chain guard.
Wheels Brakes And Tyres:
Wheel bearing maintenance, spoke tension, brake shoe adjustment and replacement, brake drum inspection, tire pressure and wear, rim maintenance.
Telescopic Fork:
Front fork service, damper rod operation, fork oil replacement, gaiter maintenance, steering head bearings.
Electrical System:
Ignition system (magneto, coil, points, condenser), charging system (dynamo, rectifier), lighting circuits (headlight, taillight, brake light, indicators), wiring diagrams, battery maintenance, switchgear.
Bodywork:
Tank mounting, side panel fasteners, seat removal and installation, exhaust system, handlebars, controls.
Procedures Included
Routine Maintenance:
Oil changes, lubrication points, chain adjustment, spark plug replacement, brake adjustments, tire checks, air filter cleaning/replacement.
Troubleshooting:
Diagnosis of common running problems, ignition issues, fuel delivery problems, electrical faults, clutch and gearbox issues.
Engine Rebuild:
Detailed step-by-step instructions for complete engine disassembly, component inspection, repair, and reassembly.
Transmission Overhaul:
Clutch plate replacement, gearbox gear inspection and replacement, bearing services.
Electrical Repairs:
Wiring troubleshooting, component testing (coil, dynamo, regulator), lighting system repair.
Chassis And Suspension Repair:
Fork servicing, steering head bearing adjustment, wheel spoke truing, brake relining.
Technical Depth
Depth:
Comprehensive. Covers from basic maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures.
Illustrations:
Yes, described as illustrated with clear step-by-step instructions. Likely includes diagrams and exploded views.
Diagnostic Charts:
Implied through troubleshooting support for immediate problem fixing.
📊 Manual Specifications
File Format
Primary Format:
PDF
Secondary Formats:
ZIP, RAR, EXE (may require unzipping software like WinZip or WinRAR)
Searchability:
Likely searchable if a well-OCR'd PDF, but not explicitly guaranteed.
Print Quality
Print Permission:
Yes, can be printed on any computer.
Binding Type
Binding:
N/A (Digital Download)
Paper Type
Paper:
N/A (Digital Download)
File Size
Size Guideline:
Up to 5 GB (can be large, requires ample storage)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Air-cooled, 4-stroke, parallel-twin cylinder
Bore X Stroke:
71 mm x 82 mm (Typical for 650cc models)
Compression Ratio:
Typically around 7.5:1 to 8.5:1, depending on specific model variant and tune.
Performance
Horsepower:
Approximately 46-54 bhp @ 6,500 rpm (varies by model and year)
Torque:
Approximately 42-46 lb-ft @ 4,000 rpm (varies by model and year)
Fuel System
Carburetor Type:
Typically Amal Monobloc or Amal concentric carburetors (single or twin setup)
Fuel Grade:
Leaded premium gasoline (e.g., 96 octane), though modern unleaded can be used with appropriate fuel additives.
🔧 Transmission
Standard
Type:
4-speed constant mesh
Clutch:
Multi-plate, wet clutch
Primary Drive:
Duplex chain
Final Drive:
Chain drive
Features
Gearbox Oil Type:
EP 90 Gear Oil (specified in manual)
📐 Dimensions
Exterior
Wheelbase:
Approx. 56 inches (1422 mm)
Seat Height:
Approx. 31 inches (787 mm)
Weights
Dry Weight:
Approx. 390-410 lbs (177-186 kg), depending on model and equipment
🛡️ Safety Features
Ratings
Crash Test Data:
N/A (Vintage motorcycle, no modern crash testing applicable)
Active Features
Braking System:
Drum brakes (front and rear) - typically 7-inch or 8-inch diameter.
Lighting:
Headlight, taillight, brake light, possibly optional turn signals.
Passive Features
Frame Construction:
Steel duplex frame for rigidity.
💡 Technology Features
Infotainment
Features:
N/A (Classic motorcycle, no modern electronic infotainment systems.)
Driver Assistance
Features:
N/A (Classic motorcycle, no driver assistance features.)
Connectivity
Features:
N/A (Classic motorcycle, no connectivity features.)
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 3,000 miles (4,800 km) or annually, whichever comes first.
Valve Clearance Check:
Recommended every 3,000-6,000 miles (4,800-9,600 km), depending on usage and engine condition.
Chain Adjustment:
Check and adjust chain slack every 500-1,000 miles (800-1,600 km).
Fluid Specifications
Engine Oil Type:
SAE 20W/50 (often straight-weight or multi-grade specified for classic bikes, check manual for exact recommendation).
Engine Oil Capacity:
Approx. 4 pints (2.25 liters) including filter/sump.
Fork Oil Type:
Triumph recommends specific fork oil grades or a suitable SAE 10W fork oil.
Known Issues
Oil Leaks:
Common due to aging seals and gaskets. Manual details seal replacement and gasket fitting.
Ignition Timing:
Requires periodic adjustment for optimal performance and starting. Manual covers timing procedures.
Carburetor Tuning:
Amal carburetors can require careful adjustment of jetting and float levels for smooth running.
Electrical Reliability:
Original wiring can degrade; manual provides diagnostic help for electrical system issues.
📚 Vehicle History
Brand Heritage
Triumph Legacy:
Triumph is a legendary British motorcycle manufacturer with a rich history dating back to 1902, renowned for its sporty parallel-twin engines.
Model Evolution
T120 Bonnie Evolution:
The T120 Bonneville, introduced in 1959, was a highly successful model, evolving through the 60s with chassis and engine refinements. The TR6 Trophy offered a higher-performance, off-road-oriented variant, while the 6T Thunderbird was the predecessor to the Bonneville.
Production
Manufacturing Plant:
Meriden Works, Coventry, England
Peak Popularity:
These models were highly popular in the 1960s, representing the pinnacle of British motorcycle performance and style for their era.
🏆 Awards & Recognition
Recognitions
Historical Acclaim:
The T120 Bonneville and TR6 Trophy were highly acclaimed for their performance and styling, often featured in motorcycle magazines and considered iconic designs of their era.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

Afficher tous les détails
  • Instant download Link on the order page and in your inbox within a minute.
  • Secure checkout Encrypted Shopify payments — card, PayPal, Apple Pay, Google Pay.
  • Print-ready PDF Searchable text; print only the pages you take to the bench.
  • Coverage check Not sure it fits? Send the model and VIN before you buy.