Processing customization is the purpose of mixing ratio adjustment screw size 1 (mm) Model FCR MX carburetor universal applicable models FCR MX carburetor general article number SCL-2019090019 Specifications CNC blue, CNC red, CNC gold, CNC black, brass (original Extended) [Product Title]: CNC Easy Adjustable Fuel Mixture Screw CNC Air Fuel Mixture Screw For Motorcycle ATV Dirt Bikes FCR MX Carburetor Motor 4 Stroke [Product Name]: Suitable for keihin FCR MX Carburetor Mixture Adjustment Screw CRF KLX [Product Color] : Black, red, gold and blue brass [Product quantity]: One bag [Product material]: CNC aluminum alloy brass [Product model]: Suitable for keihin FCR MX Carburetor [Product weight] 20g [Product physical picture]: