Lost My Thread

Long term viewers will be aware of the glacial progress I'm making with rebuilding an old motorbike engine. Honestly, plate tectonics happens faster.
But the recent good weather reminded me that bimbling about on an old bike on a sunny day is a fine way to pass the time, so I should get on with it!
Tightening down the cylinder head, I managed to pull a stud out of the crank case stripping the thread.
"Bother", I said.
I've never tried repairing a thread before, but I've bought a kit & I'm going to have a go.
If I never mention any of this again, you can assume things went badly...