Historical Significance:
The Triumph T150 Trident was a flagship model for Triumph Motorcycles, known for its powerful triple-cylinder engine and advanced styling for its era.
Era Competitors:
Competed against other British motorcycles like Norton, BSA, and international models from Japan and Europe in the 750cc and above class.
Engine Configuration:
Triple-cylinder, air-cooled, 740cc (750cc designation) engine.
Performance Focus:
Designed for performance and touring, offering a smooth power delivery and capable handling.
Diy Support:
Empowers DIY enthusiasts and mechanics to perform maintenance, repairs, and restorations effectively.
Information Source:
Provides the essential technical data and step-by-step procedures required to keep the T150 Trident running optimally.
Engine Mechanical:
Detailed disassembly, assembly, inspection, and repair of engine components including pistons, rings, cylinders, crankshaft, connecting rods, camshaft, valves, and valve train.
Carburetion And Fuel Delivery:
Adjustment, overhaul, and troubleshooting of Amal carburetors, fuel tank, fuel lines, and fuel pump.
Ignition Service:
Details on spark plugs, ignition coils, distributors, ignition timing adjustments, and troubleshooting.
Gearbox Overhaul:
Comprehensive procedures for removal, disassembly, assembly, and adjustment of the gearbox and clutch assembly.
Drive Chain And Sprockets
Drivetrain Maintenance:
Information on drive chain adjustment, lubrication, and sprocket replacement.
Brake Overhaul:
Front and rear brake system maintenance, including caliper, master cylinder, brake pads/linings, and hydraulic fluid service.
Fork And Shock Service:
Front fork overhaul, rear shock absorber maintenance, steering head bearing adjustment.
Wheel Maintenance:
Wheel bearing checks, spoke tensioning, tire replacement, and wheel balancing procedures.
Wiring Diagrams:
Includes detailed wiring diagrams for lighting, ignition, charging system, and accessories.
Charging System:
Service and testing of the generator/alternator, rectifier, and battery.
Frame Inspection:
Frame inspection, painting, and minor repair guidance.
Seat And Fender:
Removal and installation procedures for seat, fenders, and fuel tank.
Scheduled Maintenance:
Detailed guidance on periodic maintenance tasks, including oil changes, filter replacements, and lubrication.
Disassembly And Assembly:
Step-by-step instructions for disassembling and reassembling all major vehicle components.
Diagnosis And Testing:
Systematic troubleshooting procedures and testing methods for common problems.
Adjustments And Calibration:
Precise instructions for adjustments to engine timing, carburetion, clutch, and brakes.
Depth Of Coverage:
Comprehensive from basic maintenance to complete engine rebuilds and electrical system diagnostics.
Pictorial Guidance:
Includes detailed illustrations, exploded diagrams, drawings, and photos.
Special Tools:
Reference to special service tool numbers and their usage.
Torque Specifications:
Includes essential tightening torques for various fasteners.
Wear Limits:
Provides specified wear limits for critical components.
Safety Precautions:
Highlights safety notes, cautions, and warnings for hazardous operations.
Engine Type:
Inline three-cylinder, four-stroke
Displacement:
740 cc (45.1 cu in)
Bore X Stroke:
63 mm x 80 mm (approx.)
Compression Ratio:
9.5:1 (typical, may vary)
Valve Gear:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Horsepower:
Approx. 50-55 bhp at 6,500 rpm (stock specification)
Torque:
Approx. 45 lb-ft at 4,500 rpm (stock specification)
Carburetors:
Typically 3 x Amal Concentric carburetors (e.g., 26mm or 28mm)
Fuel Type:
Leaded gasoline (premium unleaded with octane booster may be used)
Oil Capacity:
Approx. 5 Imperial pints (2.8 liters) for engine and gearbox (shared sump)
Recommended Oil Viscosity:
20W-50 (typical for air-cooled engines of this era, consult manual for precise spec)
Oil Change Interval:
Typically every 2,000-3,000 miles or annually (consult manual for specific recommendation).
Valve Clearance Check:
Every 4,000-6,000 miles (important for engine longevity).
Engine Oil Type:
Mineral-based motorcycle oil, e.g., API SG or SH rated, SAE 20W-50 (verify with manual).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (check manual for specific recommendation).
Common Wear Items:
Valve guides, primary chain tensioner, gearbox output shaft seal, stator winding failures, carburetor float bowl leaks.
Typical Electrical Problems:
Wiring harness degradation, ignition points maintenance, charging system output.
Key Tasks:
Regular lubrication of chain and pivot points, ignition system tuning, carb synchronization, and diligent oil level checks.
Triumph Legacy:
Triumph Motorcycles has a long and storied history, particularly known for its parallel-twin and triple-cylinder engines and classic British motorcycle design.
T150 Development:
Developed from the earlier T120 and T150 models, the T150 Trident was Triumph's attempt to compete with larger capacity, more powerful motorcycles entering the market.
Manufacturing Period:
1969-1974 (T150 models), with variations in specifications throughout this period.
Manufacturing Location:
Meriden, Warwickshire, England.
