| Year | 1983 |
| Bore x Stroke | 64 х 54 mm |
| Capacity | 347 cc / 21.1 cu-in |
| Clutch | Wet multiplate |
| Compression Ratio | 6.0 :1 |
| Consumption Average | 43 mpg |
| Cooling System | Liquid cooled |
| Dimensions | Length 2133.6 mm / 84 in Width 736.6 mm / 29 in |
| Engine | Two stroke, parallel twin cylinder with electronically actuated exhaust port valve |
| Final Drive | Chain |
| Frame | Welded steel tubular full loop |
| Front Brakes | 2x 267mm disc 1 piston caliper |
| Front Suspension | 32mm Stanchion tube telescopic forks |
| Front Tyre | 90/90-18 |
| Front Wheel Travel | 140mm / 5.5 in |
| Fuel Capacity | 20 Litres / 5.3 US gal |
| Ground Clearance | 177.8 mm / 7 in |
| Ignition | Flywheel magneto CDI |
| Induction | 2x 26mm Mikuni slide-needle carburetor |
| Lubrication | Autolube |
| Max Power | 52 hp / 38.2 kW @ 8750 rpm |
| Max Torque | 40.8 Nm / 30.1 lb-ft / @ 7500 rpm |
| Model | Yamaha RD 350LC / RZ 350LC YPVS |
| Rake | 26° |
| Rear Brakes | Single 267mm disc |
| Rear Suspension | Single shock cantilever 5-way adjustable spring preload |
| Rear Tyre | 110/80-18 |
| Rear Wheel Travel | 100 mm / 3.9 in |
| Road Tests | Cycle World Cycle Magazine |
| Seat Height | 790 mm / 31.1 in |
| Standing ¼ Mile | 13.5 sec / 99.4 mph |
| Starting | Kick |
| Top Speed | 188.2 km/h / 117 mph |
| Trail | 96.5 mm / 3.8 in |
| Transmission | 6 Speed |
| Wet Weight | 168 kg / 371 lbs |
| Wheelbase | 1384.3 mm / 54.5 in |
