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{{ | {{Motorcycle | ||
|name = Yamaha YSR50 | |name = Yamaha YSR50 | ||
| | |photo= 1987-Yamaha-YSR50-White-5492-0.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 87-93 | |production = 87-93 | ||
Line 10: | Line 10: | ||
|successor = | |successor = | ||
|class = | |class = | ||
|engine = | |engine = 49.3cc [[2-stroke]], single cylinder, [[air-cooled]] with [[reed valve]] | ||
|bore_stroke = | |bore_stroke = 40.0mm x 39.2mm | ||
|compression = | |compression = 7.4:1 | ||
|top_speed = | |top_speed =38 mph | ||
|power = | |power = 7 [[horsepower]] @ 8,800 [[RPM]] | ||
|torque = | |torque = 0.59 kg-m @ 8,500 RPM | ||
|ignition = | |ignition = | ||
|fuel_system = Carburetor, Mikuni VM16SH | |||
|spark_plug = {{sparkplug|NGK B8HS}} '87-93 | |spark_plug = {{sparkplug|NGK B8HS}} '87-93 | ||
|battery = {{battery|YUASA 6N4-2A-2}} '87-93 | |battery = {{battery|YUASA 6N4-2A-2}} '87-93 | ||
|transmission = | |transmission = 5-speed constant mesh | ||
|final_drive= {{chain|420x100}} | |||
|front_sprocket= 12T | |||
|rear_sprocket= 44T | |||
|frame = | |frame = | ||
|suspension = | |suspension = | ||
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|rear_tire = {{tire|4.00-12}} '87-93 | |rear_tire = {{tire|4.00-12}} '87-93 | ||
|rake_trail = | |rake_trail = | ||
|wheelbase = | |wheelbase = 1050mm | ||
|length = | |length = 1575mm | ||
|width = | |width = 635mm | ||
|height = | |height = 930mm | ||
|seat_height = | |seat_height = 650mm | ||
|dry_weight = | |dry_weight = 75kg | ||
|wet_weight = | |wet_weight = | ||
|fuel_capacity = | |fuel_capacity = | ||
|oil_capacity = | |oil_capacity = | ||
|recommended_oil= Yamalube 10w-40 | |||
|fuel_consumption = | |fuel_consumption = | ||
|turning_radius = | |turning_radius = | ||
|related = [[Yamaha RX50]] (contained same engine) | |related = [[Yamaha RX50]] (contained same engine), [[Yamaha YSR80]] | ||
|competition = | |competition = [[Honda NSR50]], [[Aprilia RS50]] | ||
}} | }} | ||
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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. | 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== | |||
'''Yamaha YSR 50''' and [[Yamaha YSR80|YSR 80]] sport models goes on sale in Japan in 1986, and had the look of a re-shaped, scaled-down [[Yamaha YZR500|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. | |||
{{clear}} | |||
==1987== | ==1987== | ||
<gallery mode="packed-hover"> | |||
File:1987-Yamaha-YSR50-White-5492-0.jpg|left|thumb|1987 Yamaha YSR50 in White | |||
File:1987-Yamaha-YSR50-White-5492-1.jpg|left|thumb|1987 Yamaha YSR50 in White | |||
File:1987-Yamaha-YSR50-White-5492-2.jpg|left|thumb|1987 Yamaha YSR50 in White | |||
File:1987-Yamaha-YSR50-White-5492-3.jpg|left|thumb|1987 Yamaha YSR50 in White | |||
</gallery> | |||
<br style="clear: left"/> | <br style="clear: left"/> | ||
==1990== | ==1990== | ||
<gallery mode="slideshow"> | |||
File:1990-Yamaha-YSR50-Black-8302-0.jpg|left|thumb|1990 Yamaha YSR50 in Black | |||
File:1990-Yamaha-YSR50-Black-8302-1.jpg|left|thumb|1990 Yamaha YSR50 in Black | |||
File:1990-Yamaha-YSR50-Black-8302-2.jpg|left|thumb|1990 Yamaha YSR50 in Black | |||
< | File:1990-Yamaha-YSR50-Black-8302-3.jpg|left|thumb|1990 Yamaha YSR50 in Black | ||
</gallery> | |||
==1991== | ==1991== | ||
<gallery mode="packed-hover"> | |||
File:1991-Yamaha-YSR50-Black-3420-0.jpg|left|thumb|1991 Yamaha YSR50 in Black | |||
< | File:1991-Yamaha-YSR50-Black-3420-1.jpg|left|thumb|1991 Yamaha YSR50 in Black | ||
</gallery> | |||
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==See Also== | ==See Also== | ||
*[[Yamaha YSR80]] | *[[Yamaha YSR80]] | ||
==References== | |||
{{reflist}} | |||
{{Yamaha}} | {{Yamaha}} | ||
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[[Category:Pocket bikes]] | [[Category:Pocket bikes]] | ||
[[Category:50cc displacement motorcycles]] | [[Category:50cc displacement motorcycles]] | ||
[[Category:50cc sportbike motorcycles]] | |||
[[Category:50cc sportbike motorcycles]] | [[Category:50cc sportbike motorcycles]] |