CB1100 Idle speed instability problem

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Pawel since none of our bikes have this issue we have to imagine what occurs, when this problem happens and so your input is enlightening and very importand to me.

Just so you get this in perspective; the images i posted are to explain the principle as easy as i could put it so you understand what it takes to make the rotor move.
The real world is a bit more complex and looks more like the next photo but makes it harder to understand what is happening but this shot shows the pairs of coils with different colors of the windings to show which set is positioned where;



So there's a yet unknown set of coils inside your iacv that moves the rotor in a as yet unknown part of the rotation, the more sets of coils the stronger the attraction but less movement with each step.
And a set can be two, four, six or anymore even number of opposite coils.
The impression i get is that on startup the iacv opens the valve to the end ( so the ecm knows where it is ) with many steps and then closes the valve with a pre-determined amount ( 36 ) of steps

And apologies to anyone who is not so interested in these details on this great forum.