compatible with:Fits most Keihin FCR & FCR-MX Carburetors,fits most common 4-stroke models (Reference fit models as following).fcr air fuel screw adjuster comes with spring, washer and O-ring, it is easy to install and replace
Easy To Adjust: Carb mixture screw can easily tune and adjust your idle mixture without burning your hands or fumbling with a small screw driver. Numerically calibrated for tuning memory, adjust air fuel mixture with this screw easily
high quality:This carburetor fuel air mixture screw is made of premium aluminum material, sturdy, not easy to aging and abrasion resistant, to ensure maximum strength and durability for long lasting usage
Easy Installation: Carb mixture screw adjuster comes with spring, washer and O-ring, it is easy to install and replace. Simplify installation steps, no modification, cutting, or drilling required; Size: 57 × 13mm/2.2 × 0.5in
Professional after-sales:We sell professional parts ,and provide free technical support. If you have any problems or dissatisfaction after receiving the products, please contact us directly to get New Replacement or Return.