Description: This Listing is for 1 NEW Gy6 Carburetor Jet For 139qmb 50cc Engine Carburetors. This Engine is the most common 49cc 50cc Engines on Gy6 Scooters and Mopeds. Some of the most common carburetors on this 139qmb engines are PD19J, PD18JA, PD18J, PD18B. Please See Pictures For Measurements Of Carbyretor Jets and measure your jets to make sure you are buy the right item. These 49cc, 50cc, 60cc, 72cc, 82cc, 139qmb motors are VERY common on A LOT of Scooters, Mopeds, Go Karts, ATV'S, Buggies, ECT. The size of these jets are 80. Size 80 jets give better gas flow to the engine. You Can Find This Carburetor Jet On Many Models Such As: Roketa, Sun-L, Baja, Kazuma, Carroll, Stream, Eagle, Taotao, Red Cat, Tank, Giovanni, Aimex, Jackel, Wildfire, Xtreme, Seaseng, Qlink, Yiben, Jonway, JMstar, Vento, TNG, VIP, Honda, Yamaha, Vespa, ECT. 1 x 49cc 50cc Gy6 Carburetor Jet (size 80) REMEMBER TO ADD A LITTLE AIR ON THE INTAKE FOR BETTER PERFORMANCE |