The extended fuel screw is almost a mandatory addition to any Keihin FCR or FCR-MX carburetor.  The original fuel screw is recessed into the carburetor body on the bottom of the carburetor making it extremely difficult to make adjustments, especially with a hot engine!  The extended fuel screw is designed to allow the rider to adjust the fuel screw settings easily and quickly by extending the fuel screw to a usable length for easy access.  Prevents burnt hands and blistered knuckles!  A perfect solution for altitude riders.


The MSR fuel screws are CNC machined from 6061-T6 aircraft grade aluminum and offer hte following features:

• Precision machined from 6061-T6 aluminum
• O-ring design secures the adjustment setting
• Numerically calibrated for adjustment accuracy
• Includes spring, washer, and tip o-ring

Fits ALL Keihin FCR and FCR-MX OEM and aftermarket carburetors.  For OEM applications select your model above.  Available in black or red they will fit:

• Honda CRF (NOT CRF230)
  
• Kawasaki KXF
• Suzuki RMZ
• Yamaha YZF
• KTM, all