The Yamaha WR 426F was produced from 2001-02 and features a four-stroke, single-cylinder, DOHC, 5-valve engine with a capacity of 449cc. It has a liquid cooling system and a compression ratio of 12.5:1. The bike is equipped with a 39mm Keihin FCR39H carburetor and digital CDI ignition, and is started by a kick. The maximum power output is 58.1 hp at 9000 rpm, with max torque of 49 Nm at 7000 rpm. The transmission has 5 speeds and the bike’s final drive is a chain. The front suspension is made up of 46mm Kayaba inverted telescopic forks, while the rear suspension is a fully adjustable Kayaba single shock with separate high and low-speed compression adjustment. The front and rear brakes are single 250mm and 245mm discs respectively. The bike has a wheelbase of 1490mm, a seat height of 960mm, and a ground clearance of 373mm. It has a dry weight of 114kg and an 8-liter fuel capacity. The bike is equipped with an 80/100-21 front tire and a 110/90-18 rear tire.
Technical specifications:
Make Model: Yamaha WR 426F
| Year | 2001 – 02 |
|---|---|
| Engine | Four stroke, single cylinder, DOHC, 5 valve |
| Capacity | 449 cc / 25.9 cu-in |
| Bore x Stroke | 95 x 60.1 mm |
| Cooling System | Lliquid cooled |
| Compression Ratio | 12.5:1 |
| Induction | 39mm Keihin FCR39H carburetor |
| Ignition | Digital CDI |
| Starting | Kick |
| Max Power | 58.1 hp / 42.4 kW @ 9000 rpm |
| Max Torque | 49 Nm @ 7000 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | 46mm Kayaba inverted telescopic forks compression and rebound damping adjustable |
| Front Wheel Travel | 300 mm / 11.8 in |
| Rear Suspension | Fully adjustable Kayaba single shock, 315mm wheel travel, separate high and low speed compression adjustment. |
| Rear Wheel Travel | 315 mm / 12.4 in |
| Front Brakes | Single 250mm disc |
| Rear Brakes | Single 245mm disc |
| Front Tyre | 80/100-21 |
| Rear Tyre | 110/90-18 |
| Rake | 27.2 degrees |
| Wheelbase | 1490 mm / 58.7 in |
| Seat height | 960 mm / 37.9 in |
| Ground Clearance | 373 mm / 14.7 in |
| Dry Weight | 114 kg / 251.3 lbs |
| Fuel Capacity | 8 Litres / 2.1 US gal |
