Processing customization is the use of mixing ratio adjustment screw size 1 (mm) model PWK (1/2/3 generation/original version) carburetor mixing ratio adjustment screw kit applicable models PWK 1 2 3 generation carburetor general article number SCL-2020080010 specifications CNC Blue-PWK, CNC Red-PWK, CNC Gold-PWK, CNC Black-PWK, Original Model-Brass [Product Title]: CNC Easy Adjust Air Fuel Mixture Screw Set Fit PWK Keihin Carb 21 24 26 28 30 32 34mm Motocross Dit Pit Bike ATV [Product Name]: Suitable for keihin PWK Carburetor Carburetor Mixing Ratio Adjustment Screw CRF KLX [Product Color]: Black Red Gold Blue [Product Quantity]: One Bag [Product Material]: CNC Aluminum Alloy Original Type brass