YAMAHA YDS-1 (1959-1962) Specs, Performance & Photos
Updated: 5 May 2023 • Maintained by:
Segment: Naked / Road
Production years: 1959, 1960, 1961, 1962
Further developing on the sporty performance of the YD-1, this new model mounted a 20 hp (15 Kw) engine on a steel-pipe cradle frame to achieve unprecedented running performance. Features like the first domestic-made 5-speed transmission and combination type instrument panel with engine tachometer caught the imagination of sports riders, who quickly nicknamed it Japan’s first sports model.
YAMAHA YDS-1 1959-1962
YAMAHA YDS-1 250
| engine specs | Type: | Twin cylinder, two stroke, OHV, air-cooled | Displacement: | 249 cm3 | Bore X Stroke: | 2.1x2.1 in OR 53 mm | Compression Ratio: | - | Horsepower: | 18/7500 KW(hp)/RPM | Torque: | 4/6000 lb-ft/RPM OR 5/6000 Nm/RPM | Fuel System: | Carburetor |
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| transmission specs | Gearbox: | 4-Speed | Clutch: | Wet, multiplate | Primary Drive: | - | Final Drive: | Chain |
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| chassis specs | Frame: | Double cradle frame | Front Suspension: | Telescopic forks | Rear Suspension: | Swing arm | Front Brake: | Drum | Rear Brake: | Drum |
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| dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | - | Wheelbase: | - | Ground Clearance: | - | Weight: | 304 lbs OR 138 kg | Fuel Capacity: | - |
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| tyres specs | Front: | 3.00-18 | Rear: | 3.00-18 |
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| power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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