| Year | 1977 |
| Bore x Stroke | 70 x 64 mm |
| Capacity | 492 cc / 30 cu in |
| Compression Ratio | 6.6:1 |
| Cooling System | Air cooled |
| Dimensions | Length: 2195 mm / 86.4 in Width: 880 mm / 34.6 in Height: 1105 mm / 43.5 in |
| Dry Weight | 179 kg / 395 lbs |
| Engine | Two stroke, parallel twin |
| Final Drive | Chain |
| Final Reduction Ratio | 4.79:1 |
| Front Brakes | Single disc, single hydraulic piston caliper |
| Front Suspension | Telehydraulic fork |
| Front Tyre | 3.25-19 |
| Fuel Capacity | 17 Litres / 4.5 US gal / 3.7 Imp gal |
| Gear Ratios | 1st 2.500 / 2nd 1.563 / 3rd 1.158 / 4th 0.955 / 5th 0.870:1 |
| Ground Clearance | 160 mm / 6.3 in |
| Ignition | Pointless electronic |
| Induction | 2 x VM32SS Mikuni carburetors |
| Lean Angle | 40o (left and right) |
| Max Power | 32.8 kW / 44 hp @ 6000 rpm |
| Max Torque | 53 Nm / 5.4 kgf-m / 39.1 lb-ft @ 5500 rpm |
| Primary Reduction Ratio | 2.50:1 |
| Rake | 39o |
| Rear Brakes | 160mm drum |
| Rear Suspension | Dual shocks swinging fork, preload adjustable |
| Rear Tyre | 4.00-18 |
| Spark Plug | NGK B-7H S |
| Starting | Kick |
| Top Speed (est.) | 169 km/h / 105 mph |
| Trail | 121 mm . 4.76 in |
| Transmission | 5 Speed |
| Turning Radius | 2.6 m / 8.5 ft |
| Wheelbase | 1466 mm / 57.7 in |