| Year | 1978 |
| Bore x Stroke | 57 х 52.З mm |
| Capacity | 400.4 cc / 24.4 cu-in |
| Compression Ratio | 6.5:1 |
| Cooling System | Air cooled |
| Dimensions | Length 2024 mm / 79.7 in Width 820 mm / 32.3 in |
| Dry Weight | 162 kg / 357 lbs |
| Engine | Two stroke, transverse three cylinder, piston valve |
| Final Drive | Chain |
| Frame | Double tubular steel cradle |
| Front Brakes | Single 250mm disc |
| Front Suspension | Telescopic Hydraulic forks |
| Front Tyre | 3.25-18 |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Ground Clearance | 150 mm / 5.9 in |
| Ignition | CDI |
| Induction | 3x Mikuni VM26SC, Ø 26 mm carburetors |
| Max Power | 38 hp / 28.3 kW @ 7000 rpm |
| Max Torque | 3.9 kgf-m / 28.2 lb-ft @ 6500 rpm |
| Rear Brakes | 180mm Drum |
| Rear Suspension | Dual shocks, Swing arm |
| Rear Tyre | 3.50-18 |
| Starting | KICK |
| Transmission | 5 Speed |
| Wheelbase | 1364 mm / 53.7 in |
