Doug@J&D racing
06-11-2010, 09:20 AM
if i can screw my air screw all the way in and nothing changes..... whats up?
DnB_racing
06-11-2010, 01:03 PM
The air screw can be located either near the back side of the carburetor or near the front of the carburetor. If the screw is located near the back, it regulates how much air enters the circuit. If the screw is turned in, it reduces the amount of air and richens the mixture. If it is turned out, it opens the passage more and allows more air into the circuit which results in a lean mixture. If the screw is located near the front, it regulates fuel. The mixture will be leaner if it is screwed in and richer if screwed out. If the air screw has to be turned more than 2 turns out for best idling, the next larger size pilot jet will be needed
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