| Year | 1985 |
| Bore x Stroke | 63 х 52.4 mm |
| Capacity | 653 cc / 39.8 cu-in |
| Clutch | Wet, multi-plate |
| Compression Ratio | 8.2:1 |
| Consumption Average | 43.2 mpg |
| Cooling System | Air-cooled |
| Dry Weight | 235 kg / 518 lbs |
| Engine | Four stroke transverse four cylinder. turbocharged. DOHC, 2 valves per cylinder, |
| Final Drive | Shaft |
| Front Brakes | 2x 266mm discs |
| Front Suspension | 36mm Showa 140mm wheel travel, adjustments for air pressure |
| Front Tyre | 3.25-19 |
| Fuel Capacity | 19.5 Litres / 5.0 US gal |
| Ignition | CDI |
| Induction | 4x 30mm pressurized Mikuni CVs carburetors |
| Max Power | 90 hp / 67.1 kW @ 9000 rpm |
| Max Torque | 8.33 kgf-m @ 7000 rpm |
| Production | '82: approx 6500, '83: approx 1500 |
| Rear Brakes | Single 200mm drum |
| Rear Suspension | Dual Showa dampers, 79mm wheel travel, adjustments for air pressure, rebound damping |
| Rear Tyre | 120/90 V18 |
| Standing ¼ Mile | 12.68 sec / 106.13 mph |
| Starting | Electric |
| Transmission | 5 Speed |
| Wet Weight | 257 kg / 566.5 lbs |
