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{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}} | {{DISPLAYTITLE:{{PAGENAME}} Vision: review, history, specs}} | ||
{{Infobox Motorcycle | {{Infobox Motorcycle | ||
|name = '''Yamaha XZ550''' | |name = '''Yamaha XZ550''' | ||
|image = | |image = | ||
|aka = | |aka = Vision, XZ550S | ||
|manufacturer = [[Yamaha]] | |manufacturer = [[Yamaha]] | ||
|parent_company = | |parent_company = | ||
|production = 1982 - | |production = 1982 - 1983 | ||
|model_year = | |model_year = | ||
|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = [[ | |class = [[Sport bike]] | ||
|engine = | |engine = 553cc V-twin, four-stroke | ||
|bore_stroke = 80.0mm x 55.0mm | |bore_stroke = 80.0mm x 55.0mm | ||
|compression = 10.5:1 | |compression = 10.5:1 | ||
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|torque = 36.88 ft/lbs (50.0 Nm) @ 8500RPM | |torque = 36.88 ft/lbs (50.0 Nm) @ 8500RPM | ||
|ignition = | |ignition = | ||
|spark_plug = | |spark_plug = {{sparkplug|NGK D8EA}} '82-83 | ||
|battery = | |battery = {{battery|YUASA YB14L-A2}} '82-83 | ||
|transmission = Gear box: 5-speed <br> | |transmission = Gear box: 5-speed <br> | ||
Final Drive: [[shaft]] drive (cardan) <br> | Final Drive: [[shaft]] drive (cardan) <br> | ||
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}} | }} | ||
The '''[[Yamaha]] XZ550S''' was a | The '''[[Yamaha]] XZ550S''' was a V-twin, [[four-stroke]] sportbike [[motorcycle]] produced by [[Yamaha]] between 1982 and 1983. It offered innovative technology in its motor and bold (too bold according to some) styling. It could reach a top speed of 112 mph (180 km/h). Max [[torque]] was 36.88 ft/lbs (50.0 Nm) @ 8500 RPM. Claimed [[horsepower]] was 62.63 HP (46.7 KW) @ 9500 RPM. | ||
== History == | |||
Early production models were flawed with poor braking and carburetion glitches. | |||
Three slightly different models were produced: the European model, with dual front braking discs, the 1982 US model (RJ), with a single disc and the 1983 US model (RK), with dual discs and a fairing. The models also use different sparkplugs and front forks. | |||
==Engine== | ==Engine== | ||
The engine was a [[liquid cooled]] v2, four-stroke. A 80.0mm [[bore]] x 55.0mm [[stroke]] result in a [[displacement]] of just 553.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin [[cam]] (dohc). | The engine was a [[liquid cooled]] v2, four-stroke. A 80.0mm [[bore]] x 55.0mm [[stroke]] result in a [[displacement]] of just 553.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin [[cam]] (dohc). | ||
*4 stroke 70-degree DOHC V-Twin | |||
*4 valves per cylinder | |||
*liquid cooled | |||
*552 cm³ | |||
*65 hp (48 kW) @ 9500 rpm | |||
*50 N·m (37 ft·lbf) @ 8500 rpm | |||
==Drive== | ==Drive== | ||
The bike has a 5-speed transmission. | The bike has a 5-speed transmission. | ||
*gearbox: 5 speed | |||
*final drive: shaft | |||
==Chassis== | ==Chassis== | ||
It came with a 90/90-18 front [[tire]] and a 4.25/85-18 rear tire. Stopping was achieved via dual disc in the front and a expanding [[brake]] in the rear. The front suspension was a Telescopic Fork while the rear was equipped with a Swingarm Monocross. The XZ550S was fitted with a 4.49 Gallon (17.00 Liters) fuel tank. The wheelbase was 56.89 inches (1445 mm) long. | It came with a 90/90-18 front [[tire]] and a 4.25/85-18 rear tire. Stopping was achieved via dual disc in the front and a expanding [[brake]] in the rear. The front suspension was a Telescopic Fork while the rear was equipped with a Swingarm Monocross. The XZ550S was fitted with a 4.49 Gallon (17.00 Liters) fuel tank. The wheelbase was 56.89 inches (1445 mm) long. | ||
== Wheels == | |||
*front tire: 90/90-18 51H | |||
*rear tire: 110/90-18 61H | |||
*front brake: single/dual discs | |||
*rear brake: drum | |||
== Measurements == | |||
*wet weight: 212 kg (467 lb) | |||
*fuel capacity: 17 l (4.5 US gal) | |||
==1983== | |||
<gallery mode='packed-hover'> | |||
File:1983-Yamaha-XZ-550-Vision-Red-5891-0.jpg|left|thumb|1983 Yamaha XZ 550 Vision in Red | |||
File:1983-Yamaha-XZ-550-Vision-Red-5891-1.jpg|left|thumb|1983 Yamaha XZ 550 Vision in Red | |||
File:1983-Yamaha-XZ-550-Vision-Red-5891-2.jpg|left|thumb|1983 Yamaha XZ 550 Vision in Red | |||
File:1983-Yamaha-XZ-550-Vision-Red-5891-3.jpg|left|thumb|1983 Yamaha XZ 550 Vision in Red | |||
</gallery> | |||
<br style="clear: left"/> | |||
==1983 Yamaha XZ 550== | ==1983 Yamaha XZ 550== | ||
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* [https://motopixel.org/pixel/sans-toit-ni-loi#yamaha-xz550 Sans toit ni loi] | * [https://motopixel.org/pixel/sans-toit-ni-loi#yamaha-xz550 Sans toit ni loi] | ||
[[Category: | {{Yamaha}} | ||
[[Category:Yamaha motorcycles|XZ 550]] | |||
[[Category:Sport bike motorcycles]] | |||
[[Category:Yamaha motorcycles]] | [[Category:Yamaha motorcycles]] | ||
[[Category:1980s motorcycles]] | [[Category:1980s motorcycles]] | ||