Yamaha YZ250F


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.
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.
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