I remember blowing a fuse on my KZ650 one morning. I put a new one in, but there was so much varnish on the old brass clips the connection was no good. I called my wife and begged a ride to work, and that afternoon we went home and got my truck. I was sure we would have to put it in the truck and haul it home, but for grins I tried to start it. Of course, it cranked right up. She followed me home and gave me a ride back to get my truck. All I had to do was either clean the clips or give it nine hours to establish contact on its own.