KX 250 TWO-STROKE FUN RETURNS FOR ANOTHER YEAR. For those who love the smell of premix and the sound of a two-stroke s wail, the 2007 Kawasaki KX 250 features a powerful 249 cc, liquid-cooled, two-stroke engine, wrapped in a lightweight perimeter style frame for explosive acceleration and maximum agility. The KX250 s chassis includes a strong, lightweight Renthal aluminum handlebar, aluminum su...