Mixture screw, which way to weaken.
Posted: Sun Jul 07, 2013 7:06 pm
Quick question . Flapper EFI system. Which way to weaken the mixture on the AFM adjusting screw CW or ACW?
Hello Jen.
• Turning the screw clockwise blocks the bypass port and so richens the mixture and turning it anticlockwise opens the passage to lean the mixture. The air in the bypass channel is not detected by the measuring flap so the ECU does not compensate for it by adjusting the fuel input.
the above extract taken from my full explanation of your Flapper AFM.
http://www.vintagemodelairplane.com/pag ... ter03.html
Treat yourself to a technical supper!