It looks like we don't have any community posts for this product right now — Got relevant content to contribute?

About K&S Carburetor Air Cut-Off Valve Sets

K&S Carburetor Air Cut-Off Valve Sets

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

Warning:  California Proposition 65

Get Real Into It.

Sign up for the latest scoop on the products that matter in the motorcycle community.

PureMoto Network

Top brands and retailers together helping you locate and buy motorcycle products.

Search Nearby Retailers

See what is in stock at your local retailer. Put it on hold for pickup today.

Have it Delivered

We find it in stock and deliver to you from the nearest source.

PureMoto Influencers

As seen on Youtube Dirt N' Iron and Bike Builds with Aaron Colton.