I have this old wire from 1991 and it is from an old jetski. The wire are not to be changed.
I need solder on the end, but I find it impossible. I tried for two hours, I tried to use a knife and scratch the black colour off, I have no better tool for that. I also tried to place it in gas, no clue if that should help but it didnt. At last I put it in a glass of cola and dropped salt xD have to try something.
I have no flux, but my tin is with flux inside.
What can I do? I am going nuts to be held back in my project at this point because of something this annoying