Need help soldering

[speed demon]

Well live and learn I guess. Glad I only paid 30 bucks for it. Here is a pic and I'll see if some acid will work. The reason why I cut them was because I needed long leads. I desoldered the bullit connectors that came with it and tried to butt solder some extensions on to be able to reach my speed control. I thought I had it good but when I went to run the motor it was clogging very badly. I figured it was just not a good connection and that's when I bought the 4mm bullits and cut the wires.