Difference between revisions of "Yamaha YDS-1"
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[[Category:1950s motorcycles]] | [[Category:1950s motorcycles]] | ||
[[Category:Yamaha motorcycles]] | [[Category:Yamaha motorcycles]] | ||
{{Infobox Motorcycle | |||
|name = '''Yamaha YDS-1''' | |||
|image = | |||
|aka = | |||
|manufacturer = [[Yamaha]] | |||
|parent_company = | |||
|production = 1959 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = [[Naked]] | |||
|engine = Twin cylinder, two stroke, OHV, air-cooled | |||
|bore_stroke = 53.3mm x 53.3mm | |||
|compression = | |||
|top_speed = | |||
|power = 17.97 HP (13.4 KW) @ 7500RPM | |||
|torque = 3.69 ft/lbs (5.0 Nm) @ 6000RPM | |||
|ignition = | |||
|spark_plug = | |||
|battery = | |||
|transmission = Gear box: 4-Speed <br> | |||
Final Drive: Chain <br> | |||
Clutch: Wet, multiplate <br> | |||
|frame = | |||
|suspension =Front: Telescopic forks <br> | |||
Rear: Swing arm | |||
|brakes =Front: Drum <br>Rear: Drum | |||
|front_tire = {{tire|3.00-18}} | |||
|rear_tire = {{tire|3.00-18}} | |||
|rake_trail = | |||
|wheelbase = | |||
|length = | |||
|width = | |||
|height = | |||
|seat_height = | |||
|dry_weight = | |||
|wet_weight = 138.0 kg | |||
|fuel_capacity = | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''[[Yamaha]] YDS-1''' was a Twin cylinder, two stroke, OHV, air-cooled Naked [[motorcycle]] produced by [[Yamaha]] in 1959. Max [[torque]] was 3.69 ft/lbs (5.0 Nm) @ 6000 RPM. Claimed [[horsepower]] was 17.97 HP (13.4 KW) @ 7500 RPM. | |||
==Engine== | |||
A 53.3mm [[bore]] x 53.3mm [[stroke]] result in a [[displacement]] of just 249.0 cubic centimeters. | |||
==Drive== | |||
The bike has a 4-Speed transmission. Power was moderated via the Wet, multiplate. | |||
==Chassis== | |||
It came with a 3.00-18 front [[tire]] and a 3.00-18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Swing arm. | |||
==1959 - 1962 Yamaha YDS-1== | |||
[[File:yamaha-yds-1-2-1959-1962-0.jpg|600px|1959 - 1962 Yamaha YDS-1]] | |||
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. | |||
[[Category:Naked motorcycles]] | |||
[[Category:Yamaha motorcycles]] | |||
[[Category:1950s motorcycles]] | |||
[[Category:Motorcycles needing images]] | |||
Revision as of 23:51, 20 May 2019
The Yamaha YDS-1 was a 250cc, 2-stroke, twin cylinder, twin carb, streetbike produced by Yamaha starting in 1959 that had a reputation for blowing away 650cc vertical twins during this time.
Further developing on the sporty performance of the YD-1, this new model mounted a 20hp 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.”
YDS1-R
The YDS1-R was a race kitted version of Yamaha's new for 1959 street bike. These machines were Yamaha's first effort at building a European style road racer, their previous models were more dirt oriented to suit the Japanese racing scene. These machines were the forerunners of the very successful TD/TZ250 parallel twin racing machines that dominated that 250cc racing class for a number of years.
| ||||||||
| Manufacturer | Yamaha |
|---|---|
| Production | 1959 |
| Class | Naked |
| Engine | Twin cylinder, two stroke, OHV, air-cooled |
| Bore / Stroke | 53.3mm x 53.3mm |
| Horse Power | 17.97 HP (13.4 KW) @ 7500RPM |
| Torque | 3.69 ft/lbs (5.0 Nm) @ 6000RPM |
| Transmission | Gear box: 4-Speed Final Drive: Chain |
| Suspension | Front: Telescopic forks Rear: Swing arm |
| Brakes | Front: Drum Rear: Drum |
| Front Tire | 3.00-18 |
| Rear Tire | 3.00-18 |
| Weight | (dry), 138.0 kg (wet) |
| Manuals | Service Manual |
| Tech Specs · Brochures · Reviews · Ads · Videos | |
The Yamaha YDS-1 was a Twin cylinder, two stroke, OHV, air-cooled Naked motorcycle produced by Yamaha in 1959. Max torque was 3.69 ft/lbs (5.0 Nm) @ 6000 RPM. Claimed horsepower was 17.97 HP (13.4 KW) @ 7500 RPM.
Engine
A 53.3mm bore x 53.3mm stroke result in a displacement of just 249.0 cubic centimeters.
Drive
The bike has a 4-Speed transmission. Power was moderated via the Wet, multiplate.
Chassis
It came with a 3.00-18 front tire and a 3.00-18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Swing arm.
1959 - 1962 Yamaha YDS-1
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.