Carburetor Jet Calibration Set

Calibration and adjustment bits for these popular 15 jet sizes: 33, 40, 45, 50, 60, 70, 75, 80, 90, 100, 110, 120, 140, 160, 180, 200. You can clean and increase the jet sizing in your carburetor using this set. If you need to get to a size in between the available bits use the larger bit and work partial length. For example to achieve sizing 65, use bit 70 approximately halfway. Also consider: Main Jets, Idle Jets, 750cc…