| Year | 1987 |
| Bore x Stroke | 64 х 54 mm |
| Capacity | 347 cc / 21.1 cu-in |
| Clutch | Wet multiplate |
| Compression Ratio | 6.2 :1 |
| Cooling System | Liquid cooled |
| Dimensions | Length 2095 mm / 82.4 in Width 700 mm / 27.5 in Height 1190 mm / 46.8 in |
| Dry Weight | 141 kg / 310.8 lbs |
| Engine | Two stroke, parallel twin cylinder, YPVS |
| Final Drive | Chain |
| Front Brakes | 2x 260mm disc 2 piston calipers |
| Front Suspension | 35mm Telescopic forks air assistance and variable damping |
| Front Tyre | 90/90-18 51H |
| Front Wheel Travel | 140 mm / 5.5 in |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Ground Clearance | 165 mm / 6.4 in |
| Ignition | Flywheel magneto CDI |
| Induction | 2x 26mm Mikuni slide-needle carburetor |
| Lubrication | Autolube |
| Max Power | 63 PS / 46.3 kW @ 9000 rpm |
| Max Torque | 49.1 Nm / 5.0 kg-m @ 9000 rpm |
| Rear Brakes | Single 260mm disc 1 piston caliper |
| Rear Suspension | Rising rate Monocross 5-way preload |
| Rear Tyre | 110/80-18 58H |
| Rear Wheel Travel | 100 mm / 3.9 in |
| Seat Height | 790 mm / 31.1 in |
| Starting | Kick |
| Transmission | 6 Speed |
| Wet Weight | 155 kg / 341.7 lbs |
| Wheelbase | 1385 mm / 54.5 in |
