| MODEL | YAMAHA RD 350R 1990 - 1992 |
| Year | 1990 - 1992 |
| Engine Type | Two-stroke, parallel twin, reed-valve, YPVS power valve |
| Displacement / Capacity | 347 cc / 21.1 cu in |
| Bore X Stroke | 64 x 54 mm |
| Compression Ratio | 6.2:1 |
| Cooling System | Liquid cooled |
| Max Power | 46.3 kW / 63 PS @ 9000 rpm |
| Max Torque | 49.1 Nm / 5.0 kgf-m @ 9000 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 multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 35 mm telescopic forks, air assisted, variable damping, 140 mm / 5.5 in travel |
| Rear Suspension | Rising-rate Monocross, 5-way preload, 100 mm / 3.9 in travel |
| Front Brakes | 2 x 260 mm discs, 2-piston calipers |
| Rear Brakes | Single 260 mm disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | 1385 mm / 54.5 in |
| Ground Clearance | 165 mm / 6.4 in |
| Dry Weight | 141 kg / 310.8 lb |
| Wet Weight | 155 kg / 341.7 lb |
| WHEEL SPECS | |
| Front Tyre | 90/90-18 51H |
| Rear Tyre | 110/80-18 58H |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The RD 350R was a reintroduction of the YPVS 350 twin in the UK by Mitsui using Brazilian-built bikes. Mechanically it followed the older RD350 F2 but the reviewer found it softer, partly because imports carried exhaust restrictors. It was light and roomy with good wind protection, but dated and with a crude finish by 1990s standards.
