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General| Compression Ratio | 7.0:1 |
|---|---|
| Front Suspension | Telescopic forks |
| Rear Suspension | Swingarm with twin shock absorbers |
| Displacement | 649 cc |
| Bore x Stroke | 71 mm x 82 mm |
| Power | 34 hp @ 6, 500 rpm |
| Transmission | 4-speed |
| Front Brake | Drum |
| Rear Brake | 200 mm drum |
| Fuel Capacity | 17 L (3.7 imp gal; 4.5 US gal) |
| Carburetion | Amal Monobloc |
Detailed technical specifications for the Speed Twin motorcycle model.
Detailed technical specifications for the Thunderbird motorcycle model.
Detailed technical specifications for the Trophy motorcycle model.
Detailed technical specifications for the Tiger 100 motorcycle model.
Detailed technical specifications for the Tiger 110 motorcycle model.
Procedures and intervals for maintaining the engine's lubrication system.
Description of the engine's crankcase structure and components.
Information on cylinder block types and their features.
Details regarding the construction and components of the cylinder head.
Details on crankcase bearings, inspection, and camshaft bushes.
Common causes and remedies for faulty gear selection in the gearbox.
Detailed procedures for overhauling the motorcycle clutch assembly.
Step-by-step guide for reassembling the clutch components.
Routine maintenance schedule and procedures for the telescopic fork.
Steps for adjusting steering head bearing play.
Procedure for adjusting the front brake for optimal stopping power.
Procedure for adjusting the rear brake and checking for shoe binding.
Steps to safely remove the front wheel from the motorcycle forks.
Checking and replacing worn components of the front brake anchor plate.
Correct procedure for fitting the front wheel into the forks.
Specifications and maintenance for the rigid frame rear wheel.
Steps for assembling the rear brake anchor plate components.
Specifications and maintenance for the swinging fork rear wheel.
Procedure for removing the rear wheel from swinging fork frame motorcycles.
Procedure for fitting the quickly detachable rear wheel assembly.
Steps for removing the quickly detachable rear wheel.
Information on the Mk. 2 Spring Wheel, including maintenance advice.
Procedure for removing the Spring Wheel from the motorcycle frame.
Recommended tyre inflation pressures for various Triumph models.
Details on Girling suspension units and their maintenance.
Description of the Amal carburetter's operating parts and their functions.
Guidance on adjusting and tuning the S.U. carburetter for optimal performance.
Symptoms and remedies for a sticking piston in the carburetter.
Troubleshooting steps for ignition faults causing the engine not to start.
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