1985 Yamaha XZ 550 specifications

Available technical data for this model and year. Specifications can vary by market and version.

Technical specifications

Displacement	553.0 ccm (33.74 cubic inches)
Engine type	V2, four-stroke
Power	50.0 HP (36.5 kW )) @ 9000 RPM
Compression	10.5:1
Bore x stroke	80.0 x 55.0 mm (3.1 x 2.2 inches)
Valves per cylinder	4
Fuel control	Double Overhead Cams/Twin Cam (DOHC)
Cooling system	Liquid
Gearbox	5-speed
Transmission type	Shaft drive (cardan) (final drive)
Front brakes	Dual disc
Rear brakes	Expanding brake
Front tyre	90/90-18
Rear tyre	4.25/85-18
Weight incl. oil, gas, etc	221.0 kg (487.2 pounds)
Fuel capacity	17.00 litres (4.49 US gallons)
Top speed	178.0 km/h (110.6 mph)

Source: Bikez: XZ 550, 1985. Retrieved 2026-09-19. Match confidence: exact.

Years listed are the entries held in this archive, rather than a complete production history.