Burnt Wire

So, I just made a new positive battery cable going to the starter. (1970 duster slant 6) When I got in and turned the key, nothing happened. Then this wire (picture) burnt all the way through. Form what I can see, this does nothing and it is a ground to itself. If anyone has any explanation on what this wire does or why it burnt it would be greatly appreciated. (wire was white) View attachment 1715692849 View attachment 1715692850
Author: admin