ChinesePartsPro 64178 Carburetor 24mm GY6 125cc 150cc ATV scooter parts Includes Electric Choke Inner Diameter (intake side): 24mm / Outer Diameter (intake side): 32mm Inner Diameter (air filter side): 38mm / Outer Diameter(air filter side): 43mm Open & Adjustable Enrichment Screw Main Jet Size: #104 / Idle Jet Size: #38