| Year | 1980 |
| Bore x Stroke | 67 x 56.6 mm |
| Capacity | 398 cc / 24.3 cu in |
| Caster | 27.50 |
| Clutch | Wet multiple plates, coil spring |
| Compression Ratio | 10.5:1 |
| Consumption Average | 5.2 L/100 km / 19.1 km/l / 45 US mpg / 64 Imp mpg |
| Cooling System | Air cooled |
| Dimensions | Length 2105 mm / 82,9 in Width 755 mm / 29,7 in Height 1070 mm / 42,1 in |
| Dry Weight | 175 kg / 386 lbs |
| Engine | Four stroke, parallel twin, DOHC, 4 valves per cylinder. |
| Final Drive | Chain |
| Frame | Double cradle |
| Front Brakes | Single disc |
| Front Suspension | Air assisted telescopic forks |
| Front Tyre | 3.60S-18 4PR |
| Fuel Capacity | 16 Litres / 4.2 US gal / 3.5 Imp gal |
| Gear Ratio | 1st 2.461 / 2nd 1.777 / 3rd 1.380 / 4th 1.125 / 5th 0.961 / 6th 0.851:1 |
| Ignition | Transistorized |
| Induction | 2 x Mikuni BS34SS carburetors |
| Lubrication | Wet sump |
| Max Power | 32.8 kW / 44 hp @ 9500 rpm |
| Max Torque | 36.3 Nm / 3.7 kgf-m 26.8 lb-ft @ 8000 rpm |
| Oil Capacity | 3.0 Litres / 3.2 US qt / 2.6 Imp qt |
| Primary Drive Ratio | 2.714 |
| Rear Brakes | Drum |
| Rear Suspension | Dual shocks, preload adjustable |
| Rear Tyre | 4.10S-18 4PR |
| Secondary Drive Ratio | 2.933 |
| Standing ¼ Mile | 15.2 sec |
| Starting | Electric |
| Top Speed | 158 km/h / 98 mph |
| Trail | 102 mm / 4.02 in |
| Transmission | 6 speed constant mesh |
| Wheelbase | 1415 mm / 55,7 in |
