Adjust your idle mixture quickly and easily with the JD Jetting Fuel Screw, without the need to use tools. Red anodized billet adjustment knob and hardened brass tip for best quality. Precision machined to ensure consistent results and a reliable setting. The JD Jetting Fuel Screw features an o-ring on the shank to reduce vibration and prevent the fuel screw from loosening on most FCR-MX carburetors. This kit includes genuine Keihin spring, washer and o-ring.
This fuel mixture screw if for the Keihin 4 stroke FCR MX carburetors ONLY.
