Not Ranked
By staying with the notion of 3/4 to 1 turn on the mixture screw, I would like to know how your car truely idles. For instance, many people on CC have been using the magic values to tune their FE. If I am not mistaken it was as follows:
120 holder
60 idle jet
210 air corrector
F 7 e_tube
160 main
37 choke
55 exbypass
45 pump jet
With this setting many people felt this was the proper jetting but only to find out years later thanks to Eljaro that there was a completely different setting for the proper mixture.Which every engine will more likely have a different value.
This magic setting for years must have fouled plugs, poor drivability, poor fuel economy along with incorrect fuel mixture.
I have noticed that the mixture screws do make a difference in drivablility not only idle.
So, if I am correct the challenge is to have a proper mixture at idle and off idle until about 3000 rpm when the main circuit is at 100 %.
It seems as if the idle circuit will carry the motor up to about 2000 rpm and then begins to taper off while the emulsion tube and main jet are progressivly turning on.
So, from about 2000 - 3000 rpm the following jets that need to be correctly tuned are as follows:
holder, idle jet, bypass (only used when pressing of pedal) pump jet, emulsion tube, main jet
The mixture screws will control the "mixed" volume throughout the idle circuit.
Is this correct?
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