Having a problem mounting the pot. Can't get full travel out of it, been messing with the acc. rod. I have it temp. mounted vertically. Can,t seem to get the right combo here, lengthen the arm on the pot or move the ball connecter up the rod? I must be missing some thing here, is it in the pedal stop underneath the cart or is it rod adjustment? When i lengthen the rod i can't get it back to off. Any ideas?