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| {{Motorcycle
| | [[Image:1990-Yamaha-YSR80B-Black-8487-0.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |name = Yamaha YSR80
| | [[Image:1990-Yamaha-YSR80B-Black-8487-1.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |photo= 1990-Yamaha-YSR80B-Black-8487-0.jpg
| | [[Image:1990-Yamaha-YSR80B-Black-8487-2.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |aka =
| | [[Image:1990-Yamaha-YSR80B-Black-8487-3.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |manufacturer = Yamaha
| | [[Image:1990-Yamaha-YSR80B-Black-8487-4.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |parent_company =
| | [[Image:1990-Yamaha-YSR80B-Black-8487-5.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |production = 87-93
| | [[Image:1990-Yamaha-YSR80B-Black-8487-6.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |model_year =
| | [[Image:1990-Yamaha-YSR80B-Black-8487-7.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |predecessor =
| | [[Image:1990-Yamaha-YSR80B-Black-8487-8.jpg|left|thumb|1990 Yamaha YSR80B in Black]] |
| |successor =
| | <br style="clear: left"/> |
| |class =
| |
| |engine = 49.3cc [[2-stroke]], single cylinder, [[air-cooled]] with [[reed valve]]
| |
| |bore_stroke = 40.0mm x 39.2mm
| |
| |compression = 7.4:1
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| |top_speed =
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| |power = 7 [[horsepower]] @ 8,800 [[RPM]]
| |
| |torque = 0.59 kg-m @ 8,500 RPM
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| |ignition =
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| |fuel_system = Carburetor, Mikuni VM16SH
| |
| |spark_plug = {{sparkplug|NGK B8HS}} '87-93
| |
| |battery = {{battery|YUASA 6N4-2A-2}} '87-93
| |
| |transmission = 5-speed constant mesh
| |
| |frame =
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| |suspension =
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| |brakes =
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| |front_tire = {{tire|3.50-12}} '87-93
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| |rear_tire = {{tire|4.00-12}} '87-93
| |
| |rake_trail =
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| |wheelbase = 1050mm
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| |length = 1575mm
| |
| |width = 635mm
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| |height = 930mm
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| |seat_height = 650mm
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| |dry_weight = 75kg
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| |wet_weight =
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| |fuel_capacity =
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| |oil_capacity =
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| |recommended_oil= Yamalube 10w-40
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| |fuel_consumption =
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| |turning_radius =
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| |related = [[Yamaha RX50]] (contained same engine), [[Yamaha YSR85]]
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| |competition =
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| }}
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| | |
| ==History==
| |
| '''Yamaha YSR 80''' and [[Yamaha YSR50|YSR 50]] 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.
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| ==1990==
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| <gallery mode="packed-hover">
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| | |
| File:1990-Yamaha-YSR80B-Black-8487-0.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-1.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-2.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-3.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-4.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-5.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-6.jpg|left|thumb|1990 Yamaha YSR80B in Black
| |
| File:1990-Yamaha-YSR80B-Black-8487-7.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| File:1990-Yamaha-YSR80B-Black-8487-8.jpg|left|thumb|1990 Yamaha YSR80B in Black
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| </gallery> | |
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| ==See Also== | | ==See Also== |