The Kawasaki KX250F is a certified award-winning bike, as evidenced by its continued dominance in the AMA Supercross series. So it figures that when you have a bike that’s as proven and tested as this one, it’s going to translate to the consumer market.

And that’ precisely what the KX250F has done.

For the 2012 model, the Kawasaki motocrosser offers a list of enhancements that allow the bike to be even more powerful, while also improving its handling and overall durability.

The KX250F offers cutting-edge technology right off the showroom floor, to give riders the winning edge on the track. Along with the KX250F’s race-proven performance, no other production motocrosser offers as much adjustability, fine-tuning capabilities, and rider customization when it comes to motor and suspension.

The design of the bike remains largely the same as that of its predecessor. But that’s not to say that the 2012 model doesn’t come with its share of improvements, particularly on the performance level.

We already know the bike carries a 249cc, liquid-cooled, four-stroke, four-valve, single-cylinder DOHC engine that delivers hard-hitting power across the rpm range. But for 2012, Kawasaki engineers wanted to create a bike with even more impressive top-end performance, which they accomplished by equipping its Digital Fuel Injection system with a second fuel injector –a first for use on production motocross bikes– located near the airbox intake. The all-new “upstream” injector helps build a wider and more potent spread of power as rpm climbs. The two fine-mist atomizing injectors that feed the 250cc four-stroke powerplant are distinct in appearance with different body sizes, but deliver the same per-cycle capacity.

Together, Kawasaki’s dual injectors offer the kind of a one-two punch that delivers more headings of fuel on acceleration to increase the high-rpm power and overall capabilities of the KX250F.

Find out more about the Kawasaki KX250F after the jump.

  • 2012 Kawasaki KX 250F
  • Year:
  • Make:
  • Model:
  • Engine:
    liquid-cooled, four-stroke, four-valve, single-cylinder DOHC engine
  • Displacement:
    249 L


2012 Kawasaki KX 250F Drivetrain
- image 429680
  • 249cc, liquid-cooled, four-stroke, four-valve, single-cylinder DOHC engine delivers hard-hitting power across the rpm range
  • Improved decompressor spring action for easier starting
  • New nickel plating on cylinder walls has a higher adhesion factor for increased durability
  • New connecting rod has a thicker stem for improved reliability
  • New more rigid crankshaft is re-balanced for better performance and higher durability
  • Thicker crank web design features a balance factor on par with the factory racers for reduced engine vibration, smoother power delivery and increased performance in the mid-high rpm range
  • Revised ACG stator and rotor inertia complements the changes made to the crankshaft


2012 Kawasaki KX 250F Exterior
- image 429686
  • Revised race-oriented suspension features heavier spring rates and revised damping settings both front and rear
  • Separate Function Fork (SFF) separates springing and damping functions for less weight, better performance, less stiction and easier adjustability
  • Fork features the only external spring preload adjustability in its class
  • Super-hard titanium coating on the outer surface of the inner fork tubes reduces stiction and improves suspension action while also helping prevent scratches and tube damage
  • Friction-reducing Kashima Coat treatment on the inside of the outer fork tubes contributes to smoother suspension action
  • Wrap-around fork tube guards provide greater protection for the inner tubes
  • Altered piston rod specs improve shock setting flexibility and offer better rear wheel traction
  • Features Kashima Coat on the inside of the shock reservoir for reduced friction and smoother suspension action
  • Rear shock features dual compression adjustability, allowing high-speed and low-speed damping to be tuned separately

Additional Features

2012 Kawasaki KX 250F
- image 429687
  • New countershaft sprocket cover improves look
  • New polyurethane resin drive chain roller reduces weight
  • Redesigned air boot allows room for second fuel injector
  • Large resin skid plate offers great protection with minimum weight


2012 Kawasaki KX 250F High Resolution Exterior
- image 429682
Engine Liquid-cooled, four-stroke single with DOHC and four-valve cylinder head
Displacement 249cc
Bore x stroke 77.0 x 53.6mm
Fuel injection DFI with 43mm Keihin throttle body and dual injectors
Compression ratio 13.5:1
Ignition Digital DC-CDI
Transmission Five-speed
Final drive Chain
Frame Aluminum perimeter
Rake / trail 28.2 degrees / 4.7 in.
Front suspension / wheel travel 47mm inverted Showa SFF telescopic fork with 60-way spring preload adjustability, 22 position compression and 20 position rebound damping adjustability/ 12.4 in.
Rear suspension / wheel travel Uni-Trak linkage system and Showa shock with 13 position low-speed and stepless (2-turn)high-speed compression damping, 17 position rebound damping and fully adjustable spring preload / 12.2 in.
Front tire size 80/100-21
Rear tire size 100/90-19
Front brake Single semi-floating 250mm petal disc with dual piston caliper
Rear brake Single 240mm petal disc with single-piston caliper
Overall length 85.4 in.
Overall width 32.3 in.
Overall height 50.0 in.
Wheelbase 58.1 in.
Ground clearance 13.0 in.
Seat height 37.2 in.
Curb weight 233.8 lbs.
Fuel capacity 1.9 gal.
Color Lime Green
2012 Kawasaki KX 250F High Resolution Exterior
- image 429679


Ultimate MotorCycling----"For 2012, Kawasaki engineers sought to create a KX250F with even more impressive top-end performance, which they accomplished by equipping its Digital Fuel Injection (DFI) system with a second fuel injector -a first for use on production motocross bikes- located near the airbox intake."

Kirby Garlitos
Kirby Garlitos
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Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read full bio
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