The Yamaha YDS-1 was a motorcycle produced between 1959 and 1961. It had a two stroke, piston-port, parallel twin engine with a capacity of 247cc and a bore x stroke of 54 x 54mm. Cooling was air-cooled and the compression ratio was unspecified. Induction was via a single carburetor and starting was via kick. The motorcycle had a maximum power output of 18hp at 7500rpm and a maximum torque output of 5.2kgf-m at 6000rpm. Transmission was five speed and the final drive was via chain. Suspension was telescopic forks at the front and swing arm at the rear, while braking was via drum brakes at both the front and rear wheels. Both front and rear tyres measured 3.00-18, while the motorcycle had a wet weight of 138kg and a fuel capacity of still unknown.
Make Model: Yamaha YDS-1
Year: 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:
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