Early A Horn Blows on Left Turns

Update: I know the wiring has seen better days, but against all odds I decided to try a new flasher. With the engine off and ignitions on this is what i found testing the turn signals: only the rear signals work now (and of course, the green arrow is not flashing due to the front bulbs not illuminating). When I began all this testing, at least one front signal was working. Now I am worse off than before!

So, because the horn was blowing sometimes on left turns, I tried the signals again with both horns disconnected, then with only low tone connected, then with only high tone horn connected. No change.

Then I decided to feel how warm the flasher was now. This time I did not touch the plastic connector, I just put my fingers around the aluminum case of the new flasher. I found it very hot to the touch. OK, I decided to give up any more testing for today (getting frustrate again).

Before I went inside the house, I decided to prime the carb and run the engine for a few minutes to circulate the oil and charge the battery a bit.

With the engine now running, i decided to quickly try the signals again. Much to my surprise, now both sides, front and rear are flashing as well as the green arrow on the dash. After idling for ten or fifteen minutes, I shut off the engine. I immediately turned the key back to the "on" position and tried the turn signals monmentariliy again. They all worked. I shut off the igniiton. I did not feel the flasher again, being the fact I assumed it was still warm from the testing done with the engine not running.

Not sure how to proceed now.