Difference between revisions of "Yamaha YSR50"
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|photo= 1987-Yamaha-YSR50-White-5492-0.jpg | |photo= 1987-Yamaha-YSR50-White-5492-0.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 87-93 | |production = 87-93 | ||
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|bore_stroke = 40.0mm x 39.2mm | |bore_stroke = 40.0mm x 39.2mm | ||
|compression = 7.4:1 | |compression = 7.4:1 | ||
|top_speed = | |top_speed =38 mph | ||
|power = 7 [[horsepower]] @ 8,800 [[RPM]] | |power = 7 [[horsepower]] @ 8,800 [[RPM]] | ||
|torque = 0.59 kg-m @ 8,500 RPM | |torque = 0.59 kg-m @ 8,500 RPM | ||
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|fuel_capacity = | |fuel_capacity = | ||
|oil_capacity = | |oil_capacity = | ||
|recommended_oil= Yamalube 10w-40 | |||
|fuel_consumption = | |fuel_consumption = | ||
|turning_radius = | |turning_radius = | ||
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==See Also== | ==See Also== | ||
*[[Yamaha YSR80]] | *[[Yamaha YSR80]] | ||
==References== | |||
{{reflist}} | |||
{{Yamaha}} | {{Yamaha}} | ||
Latest revision as of 20:08, 23 November 2019
Yamaha YSR50 | |
Manufacturer | |
---|---|
Production | 87-93 |
Engine | |
Bore / Stroke | 40.0mm x 39.2mm |
Compression ratio | 7.4:1 |
Top Speed | 38 mph |
Horsepower | 7 horsepower @ 8,800 RPM |
Torque | 0.59 kg-m @ 8,500 RPM |
Fuel System | Carburetor, Mikuni VM16SH |
Spark Plug | NGK B8HS '87-93 |
Battery | YUASA 6N4-2A-2 '87-93 |
Transmission | 5-speed constant mesh |
Final Drive | Chain: 420x100 |
Front Sprocket | 12T |
Rear Sprocket | 44T |
Front Tire | 3.50-12 '87-93 |
Rear Tire | 4.00-12 '87-93 |
Wheelbase | 1050mm |
Length | 1575mm |
Width | 635mm |
Height | 930mm |
Seat Height | 650mm |
Weight | 75kg (dry), |
Recommended Oil | Yamalube 10w-40 |
Related | Yamaha RX50 (contained same engine), Yamaha YSR80 |
Competition | Honda NSR50, Aprilia RS50 |
Manuals | Service Manual |
The Yamaha YSR50 is a motorcycle produced by Yamaha from 1987 to 1993.
This style of miniature motorcycle is known as a pocket bike. Although small in size, these machines are capable of giving surprising performances in the hands of skilled operators. Enthusiast groups organize races and endurance runs for pocket-bikes, of which the YSR Yamaha is the most popular. It mainly competes with the likes of the Honda NSR50. The limited edition Yamaha RX50 shared the same engine.
History[edit | edit source]
Yamaha YSR 50 and YSR 80 sport models goes on sale in Japan in 1986, and had the look of a re-shaped, scaled-down YZR500 factory racer that appealed to the spirit of race enthusiasts. The 2-stroke single-cylinder engine had a maximum output of 7 ps for the 50cc and 8.8 ps for the 80cc, a return type 5-speed transmission, front disc brake and other features to offer full-fledged sport riding potential. It became a standard in the mini-bike races popular at the time. 1992 was the last year of production, and the price was 189.000 yen for the 50cc and 211.000 yen for the 80cc.
1987[edit | edit source]
1990[edit | edit source]
1991[edit | edit source]