$5,899
Cambridge, Minnesota
Category
Competition Motorcycles
Engine
-
Posted Over 1 Month
2014 YAMAHA YZ250F, Brand new Moto Yamaha Carry over. Only one unit available.Offering a radically different motorcycle from its previous 250cc models, Yamaha is truly swinging for the fences in 2014 in the 250F class.No more delaying – EFI is here! Yamaha finally replaces the carb with a fuel injection system that uses a Keihin 44mm throttle body. Another huge change in the motor department is a rearward-inclined cylinder, just like the blue 450. Because of this new orientation, the YZ250F also adopts the bigger bike’s rear-positioned exhaust, forward-facing intake and wraparound header. The four-titanium-valve cylinder is fed fuel by a high-pressure battery-less electric pump for an optimum fuel/air ratio. All of these engine changes were aimed at more power, especially in the mid-to-high rpm range. Also, Yamaha got rid of the external oil tank for the YZ250F’s wet sump lubrication system.Though the final suspension specs have not been finalized, neither bike will have an air fork. According to Yamaha, they have been testing them but don’t think they are right for the YZ-Fs just yet. So though the 250F’s suspension isn’t radically different, the chassis is. The 250 gets the same treatment that the 450 received – hidden gas cap, asymmetrical sub-frame, bilateral beam aluminum frame, narrower overall width, and larger, but lower, two-gallon gas tank. The muffler, due to the wraparound header, is closer to the center of gravity and along with the other changes mentioned works toward mass centralization, a major focus for Yamaha’s 2014 MXers. Also, because of the shorter pipe, the sub frame is shorter and lighter, again, tightening up the bikes overall mass distribution.The 250F’s fork and rear shock have new spring specs to compliment the all-new frame and the shock’s reservoir went from horizontal to the more-common vertical arrangement. Up front, a larger 22mm front axle with a new top triple clamp increases rigidity while rubber mounted bars keep things from getting too stiff. Last of the major changes, the air filter finds a new home in front of the gas tank just like the 450F’s.Look familiar? The YZ250F's wraparound header now looks identical to the new YZ450F exhaust—the very same setup that the JGRMX race squad has been running.
