| MODEL | YAMAHA RD 350LC YPVS 1983 |
| Year | 1983 |
| Engine Type | Two stroke, parallel twin with electronically actuated exhaust port valve (YPVS) |
| Displacement / Capacity | 347 cc / 21.1 cu in |
| Bore X Stroke | 64 x 54 mm |
| Compression Ratio | 6.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 43.9 kW / 59 hp @ 9000 rpm |
| Max Torque | 47 Nm / 34.7 lb-ft @ 8000 rpm |
| Ignition | Flywheel magneto CDI |
| Induction | 2 x 26 mm Mikuni slide-needle carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Autolube |
| Gear Box | 6 speed |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Welded steel tubular, full loop |
| Front Suspension | 32 mm stanchion telescopic forks, 140 mm / 5.5 in travel |
| Rear Suspension | Single shock cantilever, 5-way adjustable spring preload, 95 mm / 3.7 in travel |
| Front Brakes | 2 x 267 mm discs, single piston calipers |
| Rear Brakes | Single 267 mm disc |
| DIMENSION SPECS | |
| Overall Length | 2133.6 mm / 84 in |
| Overall Width | 736.6 mm / 29 in |
| Overall Height | — |
| Seat Height | 800 mm / 31.5 in |
| Wheelbase | 1384.3 mm / 54.5 in |
| Ground Clearance | 171.4 mm / 6.75 in |
| Dry Weight | 145 kg / 320 lbs |
| Wet Weight | 149 kg / 328 lbs |
| WHEEL SPECS | |
| Front Tyre | 90/90-18 |
| Rear Tyre | 110/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 16.6 Litres / 4.4 US gal |
| Fuel Consumption | 43 mpg |
| Top Speed | 188.2 km/h / 117 mph |
The 1983 update added the YPVS electronically controlled exhaust power valve to the liquid-cooled 347 cc twin, improving mid-range pull while lifting peak power. It also moved to a rear disc brake and 90/90-18 and 110/80-18 tyres.
