I have two boxes and I get the same results with both of them, I have a new trigger board as I found that the earth wire close to the box had got damaged, it broke off just inside the sleeve.
common problem with the Sachse set up, brown wire is terminated to the outer sheath of the wire bundle cable and seems to be quite fragile
I have tested the Coils and get readings close to the Dyna specs, the double coil has no polarity so wires can be on either way and the single has a red dot on the positive, so not wired incorrectly.
that is actually not correct, both coils have the same pole as positive, compare where the single coil positive pole is and the dual is exactly the same, it is just missing its red dot
It seems to be related to when the L.E.D's come on and is sending a false signal to the coils, ?
so you said a couple of posts ago that you have the magnetic trigger set up so we can cross off bright lights effecting the optical triggers
way the Sachse system works which is exactly the same as the systems that we make ourselves work, the hall effect trigger is a switch and needs to be turned off and on which is what the magnets in the rotor do
as you rotate the engine in the correct direction of rotation, as the South pole magnet passes the trigger it turns the trigger on, that is when the LED light will come on next to that particular trigger. South pole magnet is marked by a "S" stamping on the face of the rotor
when the "N" being North pole magnet passes the trigger it switches the trigger off and the LED light will also go off
LED lights have nothing to do with what is happening apart from showing you that the triggers are off or on at any particular point of rotation
I will send you an email and get you to send me some photos of your set up to see if I can see what the issue is, doubt I will see anything but you never know
this is a very odd problem as you have said you have tried 2 different boards and 2 different boxes with the same result
You didn't remove the magnetic rotor and install it back to front did you ?
not even certain if the system would work if it was on back to front