air/fuel mixure

[sacramento_ford]

finally my truck is back i love her so much!!! ,, ok last issue is,, mixure, carb rebuilt kit says 1 1/2 tuns om both . was good at 2 1/2 how does this work . thanks.

[fordman]

well you start at 1 1/2 and then turn them in or out until it runs right.

[sacramento_ford]

sweet thanks,. learning so much witht his truck,, y 2002 ford focus, is like figuring out alien technolgy .

[NM5K]

Generally, you set the mixture by idle speed. IE: you usually start about 2 turns out
from all the way down. Then you start the engine, and slowly roll it back out to make sure
you have max rpm. Then you slowly screw it back in until you notice a slight drop in rpm.
Once you get the slight drop, I usually roll it back out about a 1/2 turn or so.
The drop in rpm is usually small. It won't be drastic unless you really screw it down too
far. Also.. Never force the screw down to the stop. That can bugger up the tip of the
screw. Once it feels like it's bottomed out, never force it.

[AK F100]

Generally, you set the mixture by idle speed. IE: you usually start about 2 turns out
from all the way down. Then you start the engine, and slowly roll it back out to make sure
you have max rpm. Then you slowly screw it back in until you notice a slight drop in rpm.
Once you get the slight drop, I usually roll it back out about a 1/2 turn or so.
The drop in rpm is usually small. It won't be drastic unless you really screw it down too
far. Also.. Never force the screw down to the stop. That can bugger up the tip of the
screw. Once it feels like it's bottomed out, never force it.

Good clear instructions, I like it.

[Steve75]

Good instructions on the lean drop method for adjusting the carburetor. When I adjust the carburetor I use a tachometer, it makes it easier to see the drop in RPM described by NM5K. Consult your shop manual for specifications as to idle speed. I have also found that when it is right the idle will pick up greatly as a poorly adjusted carburetor usually requires the idle to be set higher. If it runs good at 2 1/2 then leave it be. That is where my 360 liked to be set.