Ok so I fixed my thread issues. I have 2 different 15-91's. Koolranch gave me one that he had restored but started smoking. I have one I rewired the motor on. I have the original wall plug and pedal from my 15-91. after I fixed the first machine I started on a few projects. As I was sewing the under part of my arm kept hitting the post you use to wind the bobbin. When I hit the post it felt like I was scraping a bur. I would check my wrist or the post and nothing. It happened several times and I could not figure it. Then afteri had sewn 3 inches into my dl project, thought maybe it was electrical. I got my fathers old meter and sure enough, if I held the negitive and touched the machine with the positive the needle jumped. So I checked all my wiringand could see anything off. I checked the pedal and wall plug and it again looked fine. I pulled up the wiring harness images and dOuble check to make sure it was correct. Now I am further down the rabbit whole then I wanted to. Still wanting to figure this out, I figured I would wire my pedal and use the other singer. At first I could not repeat the issue. I decided to make this machine work and switched whats needed. I got tjis machine going and noticed a little smoke, which looked and smelled like a lionel train. It was very minor when I first started but I moved on. Now using the other machine I hemmed the sides of my argon 1.6. During use I started to feel the tingle again. I finished the hems and checked the meter and we are back to the same thing as the other machine. I had tried to check several times during use and at first I could only get the needle to move when the pedal was engaged. Then after a while I checked and it was happening even after.

My first thought was the pedal. Although both machine are rewired they were done by 2 different people. I would assume it would seem less likely we both made the same mistake. I am using the pedal for both machines.

I was hoping to finish my project by friday. I put my diy stuff off because I truly enjoy these machines and fixing things, I just wanted to make my gear. I have people wating on my and almost no money. Koolranch has another machine I can buy, I could buy a pedal or even the wall plug but I cant do it all.

I may also just stop into the repair shoppe tomorrow and aSk. I also dont want to dump money on a service repair.

Thanks for reading and helping. I guess I snould be luck I didnt get the aed treatment.