How to identify high voltage output coil on motorcycle magneto?

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Integer

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Hi all!

I'm trying to build CDI igniton for my 2 stroke Yamaha TDR 125.

I'm building acording to this schematic:
mastercircuits.blogspot.com/2010/07/yamaha-dt125-cdi.html

And I have made board and solder components, but I have one problem.

From my magneto 8 wires are going out, 3 are for regulator, 2 for pick-up and there are 3 wires which have been going into the old CDI.

So problem is to identify which 2 of these 3 wires I need.

Is it possible trough resistance, or is there some other way?

Thanks!
 

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