I have a repeating problem where now it is to the point of not working. The plug that goes into the PTO keeps burning off the wire. I fix it until the point of buying a new wire harness as you just cant buy the plug. First time I changed the entire harness. This lasted for a few cuttings. The second time I bought a harness and just cut off the plug and spliced it in. This last for a few cuttings also. Nor I try and fix it with new ires and clips but it just burns them off in a few min of running. I even bought high tem clips. Why does this get so hot? can I fix this or do I need a new PTO?