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How Carburetors Work

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A Q-jet's fuel jets are integrated into the baseplate itself at the bottom of the fuel bowl. The primary jets are easily removed, but the secondary jets (which, are actually fixed-diameter discs) are not. Consequently, fuel flow in the primaries can be altered by changing out the jets or metering rods.
How Carburetors Work - Carbin' It Easy

 A Q-jet's fuel jets are integrated into the baseplate itself at the bottom of the fuel bowl. The primary jets are easily removed, but the secondary jets (which, are actually fixed-diameter discs) are not. Consequently, fuel flow in the primaries can be altered by changing out the jets or metering rods.  View Related Article

 

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