| Year | 1986 |
| Battery | 12v (6AH) YTX7A-BS |
| Bore x Stroke | 55 x 42 mm |
| Capacity | 399 cc / 24.3 cu-in |
| Clutch | Wet multi-plate coil spring |
| Compression Ratio | 11.0:1 |
| Cooling System | Liquid cooled |
| Dry Weight | 165 kg / 363.7 lbs |
| Engine | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder. |
| Final Drive | Chain |
| Front Brakes | 2x Discs |
| Front Suspension | Telescopic forks |
| Front Tyre | 110/90-16 |
| Fuel Capacity | 14.5 Litres / 3.8 US gal |
| Ignition | Transistorized CDI |
| Induction | 4x 26mm Flat-side CV |
| Lubrication | Forced pressure and wet sump |
| Max Power | 59 hp / 44 kW @ 12500 rpm |
| Max Torque | 39 Nm / 28.7 lb-ft @ 10000 rpm |
| Rear Brakes | Single disc |
| Rear Suspension | Mono shock |
| Rear Tyre | 130/70-18 |
| Starting | Electric |
| Transmission | 6 Speed |
