Yamaha WR 400F (1998-00) vs Yamaha RD 200 (1979)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | WR 400F | RD 200 |
| Years: | 1998-00 | 1979 |
| Engine: | Four stroke, single cylinder, DOHC, 5 valve | Two stroke, torque induction, parallel twin |
| Capacity: | 399 cc / 24.3 cu-in | 195 cc / 11.8 cu-in |
| Bore x Stroke: | 92.0 x 60.1mm | 52 х 46 mm |
| Cooling System: | Lliquid cooled | Air cooled |
| Compression Ratio: | 12.5:1 | 7.1:1 |
| Induction: | Keihin 39mm FCR, accelerator pump, throttle positioning sensor | 2x Y20P Carburetors |
| Ignition: | CDI | Battery coil |
| Starting: | Kick | Electric & Kick |
| Max Power: | 48 hp / 35.3 kW @ 8000 rpm | 20 hp / 14.7 kW @ 8000 rpm |
| Max Torque: | 39 Nm / @ 7500 rpm | 1.9 kgf-m / 8.6 Nm @ 7000 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Inverted 46mm Kayaba forks with | Telescopic forks |
| Rear Suspension: | Monocross Kayaba | Dual shocks |
| Front Brakes: | Single 245mm disc 4 piston caliper | Single 245 mm disc |
| Rear Brakes: | Single 220mm disc 2 piston caliper | Drum |
| Front Tyre: | 80/100-21 | 2.75-18-4PR |
| Rear Tyre: | 110/100-18 | 3.25-18-4PR |
| Wheelbase: | 1480 mm / 58.3 in | 1240 mm / 48.8 in |
| Seat height: | 991 mm / 39.0 in | 780 mm / 30.7 in |
| Ground Clearance: | 373 mm / 14.7 in | 155 mm / 6.1 in |
| Fuel Capacity: | 8 Litres / 2.1 US gal | 11.5 Litres / 3.0 US gal |