Mbike - Catalogue. Community. Map.
Catalogue. Community. Map.
Yamaha DS 7 1971 
Air cooled, 247cc, 2, 2-stroke
| Power: | 23.79 HP (17.5 kW) @ 7500 rpm |
| Final drive: | Chain |
| Top speed: | 86.99 mph |
| Curb weight: | 321.9 lbs |
| Category: | All-rounder |
| Tags: | All-rounder, Classic bike |
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Engine and transmission
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| Engine type: | 2 cylinders, 2-stroke |
| Displacement: | 247 cc (15.09 cubic inches) |
| Bore × stroke: | 2.13 inch × 2.13 inch (square) |
| Cooling system: | Air cooled |
| Power: | 23.79 HP (17.5 kW) @ 7500 rpm |
| Throttle: | Cable operated |
| Fuel and ignition | |
| Sparks per cylinder: | 1 |
| Fuel supply system: | Carburetor |
| Compression: | 7.1:1 |
| Gear box: | Manual 5-speed |
| Clutch: | Wet, multiple discs, cable operated |
| Final drive: | Chain |
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Dimensions
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| Weight | |
| Curb weight: | 321.9 lbs |
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Chassis and suspension
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| Frame type: | steel, Double cradle frame |
| Front | |
| Suspension: | Cartridge |
| Brake: | Drum |
| Rear | |
| Suspension: | twin shock, Swingarm |
| Brake: | Drum |
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Other
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| ABS available: | No |
| Power-to-weight ratio: | 0.12 KW/lbs (8.34 lbs/HP) |
| Top speed: | 86.99 mph |
| Fuel capacity: | 3.17 gals |
| Number of riders: | 2 persons |
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