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Keihin FCR-MX

FCR-MX Carburetor

The ultimate off-road performance carburetor for four-stroke engines. Keihin has developed the FCR-MX for the specialized needs of motocross, flat track, off-road, and ATV racing. Featuring a roller bearing supported flat slide, accelerator pump, and large, baffled float bowl, FCR-MX is race-ready right out of the box.

FCR-MX Features and Benefits:

  • Smoothbore venturi for maximum air flow
  • Combined float bowl over-flow drain and quad-vents
  • Enclosed throttle cable bell-crank
  • High-capacity float chamber
  • Float chamber baffle improves performance in rough terrain
  • Available with air cut valve (ACV) for deceleration enrichment to prevent exhaust popping
  • Available with Hot re-start knob
  • Available in 39 and 41mm throttle bore for 350cc and up four-stroke single-cylinder engines