1981 Yamaha XJ 750 Seca specifications
Available technical data for this model and year. Specifications can vary by market and version.
Technical specifications
| Displacement | 748.0 ccm (45.64 cubic inches) |
|---|---|
| Engine type | In-line four, four-stroke |
| Power | 82.0 HP (59.9 kW )) @ 9000 RPM |
| Torque | 67.0 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 6900 RPM |
| Compression | 9.2:1 |
| Bore x stroke | 65.0 x 56.4 mm (2.6 x 2.2 inches) |
| Valves per cylinder | 2 |
| Fuel system | Carburettor. 4 x 34mm Mikuni |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Transistorized |
| Cooling system | Air |
| Gearbox | 5-speed |
| Transmission type | Shaft drive (cardan) (final drive) |
| Frame type | Steel, double cradle |
| Front suspension | Telescopic forks |
| Rear suspension | Swing arm |
| Front brakes | Single disc |
| Rear brakes | Expanding brake |
| Front tyre | 3.25-19 |
| Rear tyre | 120/90-18 |
| Weight incl. oil, gas, etc | 241.0 kg (531.3 pounds) |
| Wheelbase | 1445 mm (56.9 inches) |
| Fuel capacity | 18.00 litres (4.76 US gallons) |
| Top speed | 204.0 km/h (126.8 mph) |
Source: Bikez: XJ 750 Seca, 1981. Retrieved 2026-09-19. Match confidence: exact.
Years listed are the entries held in this archive, rather than a complete production history.
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