[Username1]

An opportunity exists for you to do the best job possible - but it's more work. Since that
flyback is one of those non-obtainable types.... It may just be the best idea to combine
some of the aspects of the best ideas people have posted - into the best possible repair...

Since the damaged area is at the end if the most outer windings, you could unwind it to
the trouble spot, then aggressively clean off the burnt crud, even if you need to use
something like sand paper.... Then coat the bare wire with the 2100 V. spray - maybe
even several coats.... Then if the wire has a wax coating on it as if it were done before
the wire was wound onto the transformer, then you can redo that too....

While the spray protects to 2100 V. it will easily protect the low potential from one
winding to the next, but your arc, and the next most probable arcing will take place
from the highest potential to the lowest, like the metal cage, just like last time.
So it would be smartest to take the most protective precautions available to you.

You will most likely need to replace the tire, or repair it at the burn spot since it is the
item that was in place between the area of highest potential, to that of lowest potential.....
Insulating the inside of the metal cage is also a great idea.....

Good Luck !

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