Quote Originally Posted by MotoJ View Post
My whip is correct- 0 to ground on the wide blade side. I didn't open it to see what color, but that doesn't matter for now. The welder plug I wired as the manual said, with black on wide side, which evidently is incorrect. I'll switch that and try it again....

My last post I made while you were writing.. Mark apparently is replying here to a question from another thread!

Thanks for the help so far!
Your whip is incorrect. It should be 0 to ground on the narrow blade for the 6-50 side. If you followed the manual for the 6-50 plug installation.