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Factory Effex Fuel Adjustment Screw

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The Fuel Adjustment Screw Mag makes dialing in your carb quick and easy. Made from CNC Machined 6061 for precise adjustments. No tools needed to adjust. Available in Red, Blue, and Mag colors.

  • Fits Keihin FCR carburetors.
  • Fits: YZ426 00-02, YZ250F 01-0, YZ450F03-08, WR426 01-02, WR250F 01-08, WR450F 03-08, CRF450R 07-08, CRF250R/250X 04-08, CRF450R 02-08, CRF450X 05-08, KX250F 04-08, KX450F 06-08, KLX450R 08, RMZ250 04-08, RMZ450 05-07.

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