Yamaha XZ550 Vision: review, history, specs

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Yamaha XZ550
Manufacturer
Also called Vision, XZ550S
Production 1982 - 1983
Class Sport bike
Engine
553cc V-twin, four-stroke
Bore / Stroke 80.0mm x 55.0mm
Compression ratio 10.5:1
Top Speed 112 mph (180 km/h)
Horsepower 62.63 HP (46.7 KW) @ 9500RPM
Torque 36.88 ft/lbs (50.0 Nm) @ 8500RPM
Spark Plug NGK D8EA '82-83
Battery YUASA YB14L-A2 '82-83
Transmission Gear box: 5-speed
Final Drive: shaft drive (cardan)
Suspension Front: Telescopic Fork
Rear: Swingarm Monocross
Brakes Front: dual disc
Rear: expanding brake
Front Tire 90/90-18
Rear Tire 4.25/85-18
Wheelbase 56.89 inches (1445 mm)
Length 83.5 inches (2121 mm)
Width 33.31 inches (846 mm)
Seat Height 30.71 inches (780 mm)
Weight 228.0 kg (wet)
Fuel Capacity 4.49 Gallon (17.00 Liters)
Manuals Service Manual

Reviews ·


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[edit]

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[edit]

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[edit]

The bike has a 5-speed transmission.

  • gearbox: 5 speed
  • final drive: shaft

Chassis[edit]

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[edit]

  • front tire: 90/90-18 51H
  • rear tire: 110/90-18 61H
  • front brake: single/dual discs
  • rear brake: drum

Measurements[edit]

  • wet weight: 212 kg (467 lb)
  • fuel capacity: 17 l (4.5 US gal)

1983[edit]



1983 Yamaha XZ 550[edit]

1983 Yamaha XZ 550

The Yamaha Vision, also know as the XZ 550, was a motorcycle produced in 1982-83. This bike won the prize of the "Best Middleweight" motorcycle in 1983.


In Media[edit]



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