MSD weak spark

I've tried different combinations of wires and nothing changes. I also tried now to mount the stock cdi and working properly.
Not having a analogic tester can't verify the correct operation of the pulse coil. But because it works well with the stock unit I do not think he is the real problem.
I just bought a complete ignition used, when I come I will try to replace the various components, hoping to find a solution....
 
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