1983 Yamaha XJ 550 specifications
Available technical data for this model and year. Specifications can vary by market and version.
Technical specifications
| Displacement | 528 cc (32.2 cu in) |
|---|---|
| Engine type | Four-stroke, transverse four-cylinder, DOHC, 2 valves per cylinder |
| Power | 37 kW (50 PS) at 9000 rpm |
| Torque | 41.9 Nm at 7500 rpm |
| Compression | 9.5:1 |
| Bore x stroke | 57 x 51.8 mm |
| Fuel system | Four 28 mm Mikuni carburetors |
| Ignition | Battery-powered inductive |
| Cooling system | Air cooled |
| Gearbox | 6-speed |
| Transmission type | Chain |
| Front suspension | Telescopic coil-spring forks |
| Rear suspension | Swingarm with dual preload-adjustable dampers |
| Front brakes | Two 267 mm discs |
| Rear brakes | 182 mm drum |
| Front tyre | 3.25-19 |
| Rear tyre | 110/90-16 |
| Weight incl. oil, gas, etc | 205 kg (450 lb) |
| Fuel capacity | 15 litres (3.9 US gal) |
| Top speed | 178.6 km/h (111 mph) |
Source: MotorcycleSpecs: Yamaha XJ 550R Seca, 1983 specification described on source page. Retrieved 2026-09-19. Match confidence: strong.
- The legacy catalog labels this model generically as XJ 550.
- The surviving source identifies the 1983 Seca variant and states that it was mechanically unchanged from the original model.
Years listed are the entries held in this archive, rather than a complete production history.
Browse XJ and XJR models and variants · Parts buying guide · Decals and graphics