4mm Main Jet for PB, PAB, NCV, CVK 17, 20, 22, 24, 26mm carburettors. If you are not certain which jet you have, Check prior to ordering! Jet kit for PGO and SYM 50cc scooters, as well as many 4T 50cc – 125cc models. 4mm thread size, jets kit includes sizes 80, 82, 84, 86, 88, 90, 92, 94, 96, 98.
