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Triumph

TRIUMPH TROPHY 250 1955-1974 Factory Repair Manual 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973

TRIUMPH TROPHY 250 1955-1974 Factory Repair Manual 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973

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$16.99
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Vehicle data plateRef 487067
Brand
Triumph
Vehicle
Motorcycle
Models covered
TROPHY 250
Years
1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 2000
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:
Trophy 250
Product Type:
Factory Repair Manual
Product Name:
Triumph Trophy 250 1955-1974 Factory Repair Manual
Generation
Covered Years:
1955-1974
Codes
Internal Product Code:
TRI-TRO250-RM-5574
👋 Introduction
Market Position
Segment:
Classic British Motorcycle
Target Audience:
Triumph Trophy 250 owners, restorers, mechanics, and enthusiasts.
Competitive Analysis
Alternatives:
May include aftermarket manuals, owner's club technical documents, or specialist workshop guides.
Advantage:
Original factory documentation ensures accuracy and completeness for the specified production period.
Key Features
Authenticity:
Official Factory Repair Manual
Comprehensiveness:
Covers a wide range of years and all major service/repair aspects.
Accessibility:
Instant download, usable on multiple devices.
📋 Manual Details
Coverage Areas
Vehicle Segment:
Motorcycle
Geographic Coverage:
Global (for Triumph motorcycles of the specified era)
Page Count
Estimated Page Count:
Likely substantial, given the 19-year production span and comprehensive nature. (Estimate: 300-600 pages)
Manual Type
Type:
Factory Service/Repair Manual
Purpose:
Repair, Service, Restoration, Maintenance, Diagnostics
Language
Language:
English
Format
Digital Format:
PDF (Downloadable)
Delivery Method:
Instant Digital Download
📖 Manual Coverage
Systems Covered
Engine:
Detailed engine disassembly, assembly, tuning, lubrication, cooling system, ignition system (magneto/coil/distributor depending on year), carburetion (Amal, etc.), piston, crankshaft, valve train.
Transmission:
Gearbox disassembly, assembly, lubrication, shifting mechanisms, clutch operation and adjustment (wet multi-plate).
Chassis And Suspension:
Frame inspection and repair, front fork (Telescopic/Girdraulic depending on model year), rear suspension (swing arm, shocks), wheel bearings, steering head bearings.
Brakes:
Drum brake mechanisms (front and rear), brake linkage, adjustment, and servicing.
Electrical System:
Wiring diagrams, lighting circuits (headlight, tail light, indicators), charging system (dynamo/alternator), battery maintenance, ignition coil, points, condenser, horn.
Fuel System:
Fuel tank, fuel lines, petcock, carburetor servicing and tuning.
Bodywork And Fittings:
Fender removal and installation, seat, handlebars, controls, exhaust system, silencer, body panels (if applicable).
Procedures Included
Maintenance:
Regular servicing, lubrication schedules, oil changes, filter replacement, chain adjustment, brake adjustments, tire pressure checks.
Troubleshooting:
Diagnosis of common running problems, electrical faults, mechanical failures, and step-by-step guides for resolution.
Repair:
Detailed instructions for component replacement, rebuilding of engine, gearbox, suspension, and electrical components.
Restoration:
Guidance for bringing a classic Trophy 250 back to original factory specifications, including parts identification and finishing details.
Rebuild:
Comprehensive procedures for complete engine, gearbox, and carburetor rebuilds.
Technical Depth
Depth:
Complete factory-level diagnostic and repair information, suitable for professional mechanics and experienced DIY enthusiasts.
Illustrations:
Clear, step-by-step instructions with detailed illustrations, diagrams, and exploded views.
Specifications:
Includes torque specifications, clearances, timing settings, fluid capacities, and part numbers.
📊 Manual Specifications
File Format
Type:
PDF
Compatibility:
Windows, Linux, macOS, Tablets, Smartphones
Searchability:
Likely text-searchable PDF
Print Quality
Printability:
Printable on demand
Resolution:
Optimized for digital viewing and printing (typical for factory manuals).
Binding Type
Binding:
Not Applicable (Digital Download)
Paper Type
Paper:
Not Applicable (Digital Download)
File Size
Size Estimate:
Up to 5GB (as stated in product description)
⚙️ Engine Specifications
Primary Engine
Type:
Air-cooled, vertical twin-cylinder, four-stroke OHC (Overhead Camshaft) or OHV (Overhead Valve), depending on specific model variations within the 1955-1974 range.
Displacement:
Approximately 250cc (specific bore and stroke may vary slightly across years and sub-models. Likely in the range of 249cc).
Performance
Horsepower:
Estimated 16-20 HP (at peak RPM, varies by year and tune).
Torque:
Not explicitly stated in product info, but characteristic of small-displacement twins of the era.
Fuel System
Carburetion:
Typically Amal concentric or monobloc carburetors, single or dual depending on specific Trophy 250 variant.
Fuel Type:
Unleaded gasoline (or leaded with appropriate additives for older models).
Lubrication
System:
Wet sump lubrication system, with specific oil capacity and type detailed in the manual.
Ignition
System:
Magneto ignition or coil and points ignition system, depending on the model year. Manual will cover timing and settings.
🔧 Transmission
Standard
Type:
Constant mesh, sequential gearbox with foot shift.
Number Of Gears:
Typically 4-speed or 5-speed, depending on the specific model year and evolution.
Optional
Optional Gearbox:
Not typically applicable for this model; factory variations would be covered.
Features
Clutch:
Wet multi-plate clutch, operated by cable and handlebar lever. Manual will cover adjustment and replacement.
Final Drive:
Chain drive. Manual will cover chain tension adjustment and lubrication.
📐 Dimensions
Exterior
Wheelbase:
Varies by year, typically in the range of 53-55 inches (approx. 1350-1400 mm).
Seat Height:
Varies by year, designed for accessibility.
Weights
Dry Weight:
Typically around 300-350 lbs (approx. 136-159 kg), depending on model and equipment.
Gross Vehicle Weight Rating:
Not explicitly stated for motorcycles, but the manual will cover load capacities.
🛡️ Safety Features
Ratings
Safety Standards:
Designed to meet the safety standards of its era. Manual will detail safe operating practices.
Active Features
Braking:
Drum brakes front and rear. Manual will detail their operation and maintenance.
Lighting:
Headlight, tail light, stop light. Wiring diagrams are critical for function.
Passive Features
Frame Construction:
Steel frame, designed for stability. Manual covers frame integrity checks.
💡 Technology Features
Infotainment
Infotainment System:
N/A - This era of motorcycle predates integrated infotainment systems.
Driver Assistance
Driver Assistance Features:
N/A - No electronic driver assistance features present.
Connectivity
Connectivity Features:
N/A - No electronic connectivity features.
Electrical Advancements
Advancements:
Innovations of the era would include improvements in dynamo output, potentially the introduction of electronic ignition on later models, and updated wiring harness designs.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 2,000-3,000 miles or annually, but specific recommendation will be in the manual.
Valve Clearance Check:
Often required at similar intervals to oil changes, especially for OHC models. Detailed procedure in the manual.
Spark Plug Replacement:
Varies, but generally every 5,000-10,000 miles. Manual will specify plug type and gap.
Fluid Specifications
Engine Oil Type:
Likely SAE 20W/50 or similar viscosity motorcycle-specific oil. Manual will provide exact specification.
Gearbox Oil Type:
Specific gear oil or motor oil as per manual. Capacity also specified.
Fork Oil Type:
Specific fork oil viscosity (e.g., SAE 10W or 20W) and fill level.
Known Issues
Common Wear Points:
Valve guides/seals, clutch wear, gearbox dogs, timing chain wear, electrical component aging (especially wiring insulation), Amal carburetor float issues.
Performance Degradation:
Can include carburation tuning issues, ignition timing drift, and compression loss due to engine wear.
📚 Vehicle History
Brand Heritage
Manufacturer:
Triumph Engineering Co. Ltd., UK.
Reputation:
Renowned for building iconic British motorcycles, often associated with performance and style.
Model Evolution
Development:
The Trophy 250 represents Triumph's evolution in the 250cc class, likely encompassing updates to engine, chassis, and electrical systems over its production run.
Variations:
Potential variations include different engine states of tune, gearbox configurations, suspension types (e.g., early models might have Girdraulic front ends), and electrical systems.
Production
Production Period:
1955-1974
Manufacturing Location:
United Kingdom (Meriden Works, Coventry).
🏆 Awards & Recognition
Recognitions
Motorcycle Achievements:
Triumph motorcycles of this period were often celebrated for their performance and success in competition and racing, contributing to brand prestige.
Ratings
Reliability Era Context:
While known for character, British bikes of this era require diligent maintenance for optimal reliability. The manual is key to this.

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.

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