Idle throttle cam stop setting

I do not have an RPM gauge on this bike 04 883 XP Sporty) so cant set the idle to any particular RPM.

So.....

To adjust the idle stop screw that adjusts the butterfly position in the throat. I have been told two things:

1) Set it so you can just see a crack of light coming through....very subjective...what is just open?
2) Set it so the drilling in the throat is just becoming visible...again similar to above....when is just visible?

So does any one have an exact figure (for the ideal) relating to the number of turns of the idle stop screw once it has made contact with the throttle cam pulley stop?
I know it will only be a guide, but any way 1 turn 2 turns??

I did have a multimeter with tach function...if I can find it...will try and dig it out.

But surely once the screw is seated and touching the cam lobe, two turns will be two turns...for whoever..I can't see the bracket moving that drastically that it is going to be contacting a totally different portion of the cam and cause that much difference.

Anyway will see if I can find the tach

Will go and look for the tach this morning. But not sure about it, but seem to remember it had three or 4 scales, each for different number of cylinders. Seem to remember it connected to the primary side. Since I have the standard ignition, and not a Single Fire system, i will be getting two sparks per cycle, so will probably have to divide by two anyway.



Cowboy, are you talking about the throttle cam stop screw or the idle mixture /EZ-Just needle?.
I have marked my Carb body and EZ-Just, but not the throttle pulley/cam screw, that is easy enough to see, so did not see the need.

On the EZ-just, I marked a red line, when it is fully seated, a black for half a turn, blue on the quarters, and yellow on the 1/8ths. Scribed a mark on the body and filled with red paint. Makes it easy to see if it moves my itself while riding too