This time it was triggered by a failing tach, probably also at least damaged by my broken Ignitech a while ago. Originally I was worried that the something was broken inside the repaired TCI and that either one of the transistors had let go (again) or something else. But no, just the tach had given up.
Next thing was a flickering pilot and tail-light, which was down to the contact plate of the ignition barrel coming loose (easy fix tighten the bolt) and more unpleasantly after only 39 years the pilot bulb holder has become somewhat worn. I decided I had enough of it and made a proper LED pilot light from a cheap LED-cob.
Vernier calipers make perfect 3rd hands for soldering finnicky stuff. (Those days when you can't find your third-hand-tool.)
The picture hardly does the brightness justice... it is epically bright. (I wonder why no one sells these as pre-made pilot lights.)
After the front was sorted, the rear light still had some problems. Strangely enough the brake-light bulb was rusty...
... and the contacts had some serious dings from the contacts, which a bit of solder sorted that nicely.
Expect somewhat more exciting stuff next time. 😏
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