Ok, ive been using a Epic Binary2 9x1....it ran fine until i switched brushes.....the brushes that came with the motor were soldered on to the endbell, after about 12-15 runs they were worn out.....i didnt know how else to get them off except to cut them..... so i cut them off and theres still solder and some brush wire left on the endbell...so i went and put the new brushes in my motor..and it ran fine for about 3 mins then slowed down drastically....the endbell was extremely hot..but the rest of the motor was at normal heat.....i took a look at the brushes and after the first run they were already black/pink/purple/blue (discolored due to heat)......???????? would anyone have a clue as to what the problem is?