K & S Carburetor Air Cut-Off Valve Sets

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Product Information

  • Located on the side of the carburetor, the air cut-off valve prevents lean fuel mixture (backfire) when decelerating.
  • Direct OEM-style replacement air cut-off valve set.
  • Kit includes diaphragm, spring and o-ring.
  • Temporarily closes the pilot jet airway to provide a richer mix as the throttle closes.
  • Sold in sets for one carburetor.