Hello,
I have a 15J sewing machine, but the foot pedal is the same wiring in all machines. Go to vintagesingers group at yahoo.com and in it (after free signing up) you will find the complete wiring diagram in the files section. You can also post a question to the group and they are very helpful folk. Another neat site is www.needlebar.com For more specific sewing machine repairs, go to sewingmachinerepair at yahoo.com. Good luck and love your vintage machine. With proper care it will outlast you and I and even make it to our grandkids! :)
Lisette
October 2005