Hi gents, i thought i would ask about orange spark from the spark plug and what the cuases may be(blue is gold i take it). I have clamped a new plug to the motor frame and turned over the engine. I get an orange spark. What are the causes?

I have a magnetron retro fitted(you can see the cut wires underneath the flywheel) to my 80202 B+S and have tested the HT lead to frame = 2.6k ohm.I did follow the OEM checklist and I do think the magnetron might be failing in the triggering/primary coil circuit with the darlington transistor bridge as the kill switch wire is disconnected yet, the tab is grounded to the frame.

Thoughts?