Yamaha YDS-1 (1959-61)
Comparison technical specifications
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| Make: | Yamaha |
| Model: | YDS-1 |
| Years: | 1959-61 |
| Engine: | Two stroke, piston-port, parallel twin |
| Capacity: | 247 cc / 15.0 cu-in |
| Bore x Stroke: | 54 x 54 mm |
| Cooling System: | Air-cooled |
| Compression Ratio: | |
| Induction: | Single carburetor |
| Starting: | Kick |
| Max Power: | 18 hp @ 7500 rpm |
| Max Torque: | 5.2 kgf-m @ 6000 rpm |
| Transmission: | 5 Speed |
| Final Drive: | Chain |
| Front Suspension: | Telescopic forks |
| Rear Suspension: | Swing arm |
| Front Brakes: | Drum |
| Rear Brakes: | Drum |
| Front Tyre: | 3.00 -18 |
| Rear Tyre: | 3.00 -18 |
| Wet Weight: | 138 kg / 309 lbs |
| Fuel Capacity: |