Yamaha YZ250F

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YZ250-F
Motorbike rider mono.jpg
2007 Yamaha YZ250F
Manufacturer Yamaha Motor Company
Production2001-present
Class Motocross
Engine 250 cc single-cylinder, water-cooled, four-stroke, DOHC
Power 39hp [1]
Torque 21 ft·lbf [1]
Transmission 5-speed
Suspension KYB
Brakes disc (front,back)
Tires 80/100-21, 100/90-19
Wheelbase 57.8 inches
DimensionsL: 85 inches
W: 32.5 inches
H: 51.2 inches
Seat height38.7 inches
Weight204 lb (93 kg) (dry)
Fuel capacity1.6 Gallons (2024 Model)
Related Yamaha YZ450F
Yamaha WR250F

The Yamaha YZ250F is a motocross motorcycle first released in 2001 by Yamaha. It features a DOHC, four-stroke engine and initially had a steel frame and subframe in 2001-2002. In 2003 it received an aluminum subframe, which was replaced in the 2006 model with an all-aluminum frame.

Contents

The YZ250F has been praised for combining the broad-power characteristics of a four-stroke engine with the light handling more common in smaller, 125 cc two-stroke motorcycles. [2]

Despite the similar name to the YZ250, very few parts have been shared between the models through their history.

Significant advances

2003Automatic decompression exhaust cam
2006Aluminium frame
2008New engine
2010New engine layout, with lower center of gravity
2014Rear slant cylinder, 4-Valve head, Fuel Injection
2019Electric starter

See also

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References

  1. 1 2 Dirck Edge, "Yamaha's 2001 YZ250F: The Horsepower Mystery", MotorcycleDaily.com, retrieve March, 2007
  2. Dirck Edge, "2001 Yamaha YZ250F: MD Ride Review", MotorcycleDaily.com, retrieve March, 2007