Ok folks, I think it might really be fixed this time. I went back to the beginning of this post & re-read everything. I started at the chassis battery and followed the ground path which looked good until I re-tested the chassis ground strap. I just replaced the strap a few days ago so assumed all was well but it was not. I was not getting a good connection at the point where the strap bolts to the frame. Even though I had cleaned the area with a wire brush until it looked clean, there were high spots around the hole so the cable did not have a solid connection. I ground it down flat and then was able to see a good connection through the meter. I also took some other good advice that was offered and added another ground cable from the battery negative to the engine block. I then operated the starter more than 20 times as quick as possible and my mystery wire never got hot! And no slow cranking! Before it was getting hot after 3 or 4 quick starts. I am currently at a motorcross event in SE Oklahoma and yes I did drive it here. I stopped for fuel after driving about 150 miles and had no issues restarting and no hot wire. Outside temps were in the high 90s during the drive. So it looks good so far. Thanks to all of you, I probably would never have figured this out. Thank you , thank you, thank you!!!!
USAF RETIRED & PROUD OF IT!!!
89 Winnebago/Itasca Spirit 24' Class A