AJS Model 31 650 (1957-66) technical specifications
AJS Model 31 650 is produced in 1957-66. Engine is Four stroke, pushrod parallel twin, OHV, 2 valves per cylinder,, displacement 646 cc / 39.4 cu in , produces power 31,4 kW / 43 hp @ 6000 rpm. AJS Model 31 650 weighs 176 kg / 388 lbs. AJS Model 31 650 has 1 photos.
Technical specifications
+ Add to 'Compare list'| Model: | Model 31 650 |
| Years: | 1957-66 |
| Engine: | Four stroke, pushrod parallel twin, OHV, 2 valves per cylinder, |
| Capacity: | 646 cc / 39.4 cu in |
| Bore x Stroke: | 72 x 79.3 mm |
| Compression Ratio: | 7.5 : 1 |
| Cooling System: | Air cooled |
| Induction: | Carburetor |
| Ignition: | 6 V (After 1964 12 V) Magnet (Lucas K2F) |
| Starting: | Kick |
| Clutch: | Multi Plate (dry, Burman) |
| Max Power: | 31,4 kW / 43 hp @ 6000 rpm |
| Transmission: | 4 Speed |
| Final Drive: | Chain |
| Frame: | Single cradle |
| Front Suspension: | Hydraulic telescopic fork |
| Rear Suspension: | Dual chocks |
| Front Brakes: | Drum |
| Rear Brakes: | Drum |
| Wheels: | Steel, wire spokes |
| Front Tyre: | 3.25 -19 |
| Rear Tyre: | 3.50 -19 |
| Dry Weight: | 176 kg / 388 lbs |
| Fuel Capacity: | 16 L / 4.2 US gal |
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