| General information |
| Model: | Yamaha WR 426 F |
| Year: | 2002 |
| Category: | Cross / motocross |
| Engine and transmission |
|---|
| Displacement: | 426.00 ccm (25.99 cubic inches) |
| Engine type: | Single cylinder |
| Stroke: | 4 |
| Compression: | 12.5:1 |
| Bore x Stroke: | 95.0 x 60.1 mm (3.7 x 2.4 inches) |
| Valves per cylinder: | 5 |
| Fuel control: | DOHC |
| Cooling system: | Liquid |
| Physical measurements |
|---|
| Dry weight: | 112.5 kg (248.0 pounds) |
| Seat height: | 998 mm (39.3 inches) If adjustable, lowest setting. |
| Overall height: | 1,303 mm (51.3 inches) |
| Overall length: | 2,270 mm (89.4 inches) |
| Overall width: | 835 mm (32.9 inches) |
| Ground clearance: | 375 mm (14.8 inches) |
| Wheelbase: | 1,490 mm (58.7 inches) |
| Chassis and dimensions |
|---|
| Front Suspension travel: | 300 mm (11.8 inches) |
| Rear Suspension travel: | 315 mm (12.4 inches) |
| Front tyre dimensions: | 90/90-21 |
| Rear tyre dimensions: | 130/90-18 |
| Front brakes: | Single disc |
| Front brakes diameter: | 250 mm (9.8 inches) |
| Rear brakes: | Single disc |
| Rear brakes diameter: | 240 mm (9.4 inches) |
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