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2015 YAMAHA YZ250F

June 5, 2014
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2015 YAMAHA YZ250F

To say the 2014 YZ250F took the world by storm would be a serious understatement. All-new in 2014, the YZ250F and its revolutionary rearward slanted engine dominated the 250F Shootouts in 2014 winning 4 out of 5. In addition to that, the 2014 YZ250F took home 3 Bike of the Year awards. For 2015 the YZ250F has been refined with new suspension settings and revised fuel and ignition timing to ensure its winning ways continue. Look for the 2015 YZ250F in both Blue and White/Red to start arriving in dealerships by the end of June for $7,590.

Liquid-cooled, DOHC 4-valve, fuel-injected engine with the same forward-positioned, straight intake, rear-inclined cylinder and rear- positioned exhaust layout as the YZ450F. The aluminum Bilateral Beam frame offers a superb rigidity balance and provides unmatched lightweight handling.

The 4-titanium-valve cylinder head is matched to a fuel injection system that provides power at mid-to-high rpm. The fuel injection system instantly adjusts the air/fuel mixtures, depending on altitude and temperature, for a hesitation-free engine that delivers no matter the conditions. The layout of the seat, fuel tank, air box and wraparound exhaust system moves the bike’s mass toward the center for exceptional handling. The front intake layout with large air filter element adds the benefit of reduced air filter maintenance due to its positioning away from dirt roost from the rear wheel.

The exhaust pipe has an innovative layout, circling the cylinder, giving the exhaust pipe proper length for an excellent exhaust pulse effect. At the same time, the exhaust pipe has three different diameters throughout the exhaust tract, bringing out excellent power characteristics. This layout allows the silencer behind the side panel, making it closer to the middle of the bike for centralized mass for superior handling.   
GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons.