The Yamaha WR 450F motorcycle, produced between 2007-08, has a four-stroke, single cylinder engine with a capacity of 449 cc. The bike has a liquid cooling system, 39mm Keihin FCR flat-slide throttle position sensor, and wet sump lubrication. It has a maximum power output of 58 horsepower at 9000 rpm and a maximum torque output of 49 Nm at 7000 rpm. The clutch is wet and multiple discs, and the transmission is a five-speed. The motorcycle has a steel single cradle frame, 46mm Kayaba inverted telescopic fork suspension at the front, a fully adjustable Kayaba single shock at the rear, and both brakes are disc. The bike has a ground clearance of 365 mm and a seat height of 998 mm. It weighs 122 kg when wet, and has a fuel capacity of 8 liters.
Make Model: Yamaha WR 450F
Year: 2007 – 08
Engine: Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder.
Capacity: 449 cc / 27.4 in
Bore x Stroke: 95 x 63.4 mm
Cooling System: Liquid cooled
Compression Ratio: 12.5:1
Lubrication: Wet Sump
Induction: 39mm Keihin FCR flat-slide throttle position sensor
Ignition: Digital CDI
Starting: Electric / Kick-starter
Max Power: 58 hp / 42.3 kW @ 9000 rpm
Max Torque: 49 Nm / 33.1 lb-ft @ 7000 rpm
Clutch: Wet, multiple discs, cable operated
Transmission: 5 Speed
Final Drive: “O” ring Chain
Frame: Steel, Single cradle frame
Front Suspension: 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable
Front Wheel Travel: 300 mm / 11.8 in
Rear Suspension: Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment
Rear Wheel Travel: 318 mm / 12.4 in
Front Brakes: Single 250mm disc 4 piston caliper
Rear Brakes: Single 245mm disc 2-piston caliper
Front Tyre: 80/100-21
Rear Tyre: 110/100-18
Dimensions: Length 2175 mm / 85.6 in Width 825 mm / 32.5 in Height 1300 mm / 51.2 in
Wheelbase: 1485 mm / 58.5 in
Ground Clearance: 365 mm / 14.3 in
Seat Height: 998 mm / 39.3 in
Dry Weight: 112.5 kg / 248 lbs
Wet Weight: 122 kg / 268 lbs
Fuel Capacity: 8 Liters / 2.1 US gal
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