CNC Aluminum Carb Air Fuel Mixture Adjuster Screw
*Replaces the stock fuel screw that is difficult to adjust.
* Allows for no tools track or trail side tuning on your FCR carb
* Clean, crisp throttle response
*Easy grip knob with laser etched numbers for simple and accurate
* Features an 0-ring design to resist engine vibration and increases accuracy
and longevity ..
* CNC machined from durable 6061-T6 aluminum.
*Fits most Keihin FCR Carburetors.