Trackside Air Fuel Mixture Screw

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Trackside Air Fuel Mixture Screw

The Trackside Air Fuel Mixture Screw makes it quick and painless to adjust the air/fuel mixture on your Kehin carbs.


  • CNC billet aluminum
  • Anodized finish
  • Easy grip design that requires no tools to adjust
  • Engraved 1-4 indicators
  • Designed to resist backing out due to vibrations
  • Fits Kehin FCR carbs
  • Includes: 1 x spring, 2 x washers and 1 x o-ring

Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

Product Style RevZilla Item # Manufacturer Product # Availability
Black 1127384 FMS-01 BLACK In Stock: Ships within 24 hours


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Why did you choose this?
RevZilla Store
I need it, and it's the only one you sell.
Robert on Nov 10, 2016
I need it, and it's the only one you sell.
Robert on Nov 10, 2016
Seems like this, or other similar products, should also fit on a 1989 XR250R; is that correct?
Michael B on Sep 27, 2016