Jetting Calculator

This jetting calculator is meant to used as a tool to calculate the relative settings which a carb should be jetted in a different environment based on temperature and altitude. Begin by entering in your base settings that are accurate for your current conditions. Next, enter in the temperature and altitude for which you want to find the approximate jetting specs for. The calculated jetting will automatically be updated below after you change each field.

If you are unfamiliar with any of the terms listed or have not established good base settings, be sure to read about basic jetting theory.
Base Settings
Temperature
Altitude
Main Jet
Pilot Jet
Needle Position
Adjusted Settings
Temperature
Altitude
Calculated Settings
Main Jet0
Pilot Jet0
Needle Position0