" 2021 YAMAHA YZ250FXYOUR POWER. YOUR WAY.This Cross Country racer has all the features to win including the smartphone Power Tuner app that adjusts the bike& #39; s settings to fit your style and the track.Features may include: ENGINE Unique Engine TuningThe revolutionary front-intake/rear-exhaust, high-performance liquid-cooled, 4-stroke, 4-valve, fuel-injected engine has been tuned for victories in the highly competitive GNCC& reg; and Hare Scrambles race series. Intake and exhaust ports work with a higher compression piston for a wider spread of power without losing top-end performance. Yamaha Power Tuner AppYamaha& #39; s free of charge and industry-exclusive Power Tuner app brings the power of the GYTR Power Tuner to your iOS& reg; or Android& reg; device. Using wireless connectivity to talk to the bike& rsquo; s onboard CAN-bus network, the app allows owners to adjust air/fuel mixture and ignition timing maps to tune engine performance for track conditions, record race log information and monitor a range of data such as maintenance and system diagnosis, engine run time and more. Adjustable Engine and Fuel MappingA handlebar-mounted map switch allows the rider to quickly select between preloaded engine maps& mdash; loaded and configured in the Power Tuner app& mdash; to account for changing track and weather conditions. The fuel injection system uses 3D-mapped electronic control for the fuel and ignition timing that are optimized for cross country racing.CHASSIS/SUSPENSION Slim BodyworkThe compact bodywork eases the rider& rsquo; s movement across the machine in tough terrain. The fuel tank provides 2.16 gallons of fuel with a larger fuel cap opening, and the graphics are embedded in the body moldings for long-lasting good looks. Light and Strong Aluminum FrameAn all-aluminum bilateral beam frame provides strength, lightness and durability for cross country racing conditions and comes standard with a rugged plastic skid plate. Advanced SuspensionIndustry favorite KYB& reg; fully adjustable spring-type forks with speed-sensitive damping and a KYB& reg; rear shock feature a large 50mm piston. Both the fork and rear shock have been thoroughly tested and tuned specifically for cross country racing.ADDITIONAL Practical TouchesQuick-adjust clutch, wide 55mm platform foot pegs, four-position rubber-mounted handlebar clamps, aluminum handlebars and a side stand come standard for added rider convenience. The YZ250FX is also pre-wired for an optional radiator fan for the most grueling conditions. Easy ServicingThe air cleaner cover features toolless access to the air filter. Thanks to a WR& reg; -style fuel level sensor in the tank, the YZ250FX includes a convenient fuel readout along with an engine warning indicator on the handlebar. Sealed O-ring ChainHigh-quality O-ring chain is tough, durable and light."
