Description 1 Application GY6 CVK main jet kit for 150cc and 125cc GY6 carburetors 2 Keihin round style main jet kit 3 Available in 20 piece 4 Including the following sizes 100 105 108 110 115 120 125 130 135 1405 Includes the following size 32 35 38 40 42 45 48 50 52 55Specification Material MetalType Main Slow Pilot JetFitment Fits Most Chinese Scooters Atvs And Karts With 125cc 150cc GY6 Motors Keihin PWK type CVK type PE etc carburetor Also will for other brand PWK CVK PE type carburetor For OKO For KOSO Stage 6 Polini etc Package Included 10 X Carburetor Main Jet kits10 X Slow Pilot Jet Kits