
Model Yamaha WR 400F
Year 1998-2000
Engine Lliquid cooled, four stroke, single cylinder, DOHC, 5 valve, . Dry Sump
Capacity 399
Bore x Stroke 92.0 x 60.1mm
Compression Ratio 12.5:1
Induction Keihin 39mm FCR
Ignition / Starting CDI / kick
Max Power 48 hp 35.3 kW @ 8000 rpm
Max Torque 39 Nm @ 7500 rpm
Transmission / Drive 5 Speed / chain
Front Suspension Inverted 46mm Kayaba forks with 300mm wheel travel
Rear Suspension Monocross Kayaba, 315mm wheel travel
Front Brakes Single 245mm disc 4 piston caliper
Rear Brakes Single 220mm disc 2 piston caliper
Front Tyre 80/100-21
Rear Tyre 110/100-18
Dry-Weight 113 kg
Fuel Capacity 8 Litres