QMB139 CVK Main Jet Kit, Part #114-49

QMB139 CVK Main Jet Kit for 50cc 4-stroke QMB139 carburetors. Available in 10 piece or 50 piece set. Keihin Round Style Main Jet Kit. Available in 10 Piece or 50 Piece Sets. Includes The Following Sizes: 72, 75, 78, 80, 85, 90, 95, 100, 105 & 110. 10 Piece Set Has 1 of Each Size 50 Piece Set Has 5 of Each Size. Thread Size: M4x0.70. Overall Length: 7.2mm.