YZ250F
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Featuring a high-spec piston, aggressive cam profiles and forward positioned intake cylinder head layout, the YZ250F's advanced four-stroke engine is known for its broad, useable powerband and class-leading low-end and mid-range torque. New for 2024, a more efficient intake path and revised ECU settings results in even more mid- to high-end power.
The aluminium bilateral beam frame has been completely redesigned based on the flagship YZ450F and provides just the right amount of strength and flex for the perfect balance of stability and cornering performance. The result is a better handling machine with lightweight feel and increased front wheel traction, allowing the rider to enter corners with greater confidence and more line choices.
The lightweight aluminium beam frame makes this one of the sharpest and most agile handling bikes in its class. By using frame walls of different thicknesses, Yamaha’s designers have built-in different levels of rigidity in key areas in order to achieve a balanced and great handling chassis that gives you the feedback and confidence you need to perform at your best.
Yamahas invisible advantage is the free Power Tuner app that makes it easy to adjust engine performance character to suit different tracks, changing surface or weather conditions via your smartphone.
Once youve selected your two preferred engine maps and preloaded them for your riding session using the Yamaha Power Tuner app you can select your mapping using the handlebar-mounted switch. This on-the-fly adjustment enables you to switch the mapping mode with the throttle shut while riding, giving you the ultimate control in all conditions.
Engine
Engine Type | Liquid-cooled, 4-stroke, DOHC, 4-valves |
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Displacement | 250 cc |
Bore x Stroke | 77 x 53.6 mm |
Compression Ratio | 13.5:1 |
Lubrication System | Wet sump |
Fuel Management | Fuel Injection |
Ignition | TCI |
Starter System | Kick |
Fuel Tank Capacity | 7.5 L |
Oil Capacity | 0.9 L |
Final Transmission | Constant mesh 5-speed |
Transmission | Chain |
Dimensions
Length | 2170 mm |
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Width | 825 mm |
Height | 1280 mm |
Seat Height | 965 mm |
Wheelbase | 1475 mm |
Ground Clearance | 330 mm |
Dry Weight | 99 kg |
Wet Weight | 105 kg with 7.5 litres of fuel |
Chassis
Frame Type | Bilateral Beam |
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Suspension Front | Telescopic fork, 310mm travel |
Suspension Rear | Swingarm (link suspension), 315mm travel |
Brakes Front | Hydraulic 270mm single disc |
Brakes Rear | Hydraulic 245mm single disc |
Tyres Front | 80/100-21 MS32 |
Tyres Rear | 100/90-19 MS32 |