Description
A properly functioning idle mixture screw is critical for carburetor tuning—it directly affects fuel atomization, throttle response, and overall engine stability at low RPMs. If your CV carburetor’s idle circuit is running lean or rich, or if your adjustment screw is stripped or damaged, this YOST Performance replacement kit restores precise control over your fuel-air mixture. This is a genuine wear item that every serious CV carb tuner should keep on hand.
Technical Specifications:
- Fits CV40 & CV44 carburetors
- Brass or stainless-steel construction
- Knurled and slotted head
- Includes spring, washer, O-ring
- Made in the U.S.A.
- Bolt-on replacement
- Industry-standard sizing
