| Year | 1981 |
| Bore x Stroke | 65 х 56.4 mm |
| Capacity | 749 cc / 45.6 cu-in |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Dimensions | Length 2195 mm |
| Engine | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Final Drive | Shaft |
| Frame | Steel, double cradle frame |
| Front Brakes | Single 269mm disc |
| Front Suspension | Telescopic forks |
| Front Tyre | 3.25-19 |
| Front Wheel Travel | 150 mm / 5.9 in |
| Fuel Capacity | 19 Litres / 4.7 US gal |
| Ignition | Transistorized |
| Induction | 4x 34mm Mikuni Carburetors |
| Max Power | 82 hp / 59.9 kW @ 9000 rpm |
| Max Torque | 67 Nm / 6.9 kgf-m @ 7500 rpm |
| Model | Yamaha XJ 750 Seca |
| Rear Brakes | Drum |
| Rear Suspension | Swing arm |
| Rear Tyre | 120/90-18 |
| Rear Wheel Travel | 96 mm / 3.8 in |
| Standing ¼ Mile | 12.3 sec / 106.6 mph |
| Starting | Electric |
| Top Speed | 204.3 km/h / 127 mph |
| Transmission | 5 Speed |
| Wet Weight | 241 kg / 531.3 lbs |
| Wheelbase | 1445 mm / 56.8 in |
