| Year | 1978 |
| Bore x Stroke | 56 x 55.8 mm |
| Capacity | 549 cc / 33.5 cu in |
| Clutch | Wet, 15 multi-plate |
| Compression Ratio | 8.6:1 |
| Cooling System | Air cooled |
| Dry Weight | 195 kg / 430 lbs |
| Engine | Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder. |
| Final Drive | Chain |
| Front Brakes | Single 275mm disc, 1 piston caliper |
| Front Suspension | Telescopic fork, oil damped |
| Front Tyre | 3.25-19 |
| Fuel Capacity | 17 Litres / 4.5 US gal / 3.7 Imp gal |
| Ignition | Battery and Coil |
| Induction | 4 x VM22SS Mikuni carburetors |
| Max Power | 35.8 kW / 49 hp @ 9000 rpm |
| Max Torque | 42 Nm 4.3 kgf-m / 31 lb-ft @ 7500 rpm |
| Primary Ratio | 1.977:1 |
| Rake | 29o |
| Rear Brakes | Drum |
| Rear Suspension | Twin shocks, coil over, 5-way adjustable springload |
| Rear Tyre | 3.75-18 |
| Standing ¼ Mile | 13.7 sec / 152 km/h / 94.7 mph |
| Starting | Electric and kick |
| Top Speed | 181 km/h / 112 mph |
| Trail | 119.9 mm / 4.7 |
| Transmission | 6 Speed |
| Wet Weight | 216 kg / 476 lbs |
