I have a toro proline 52 that will run fine, and drive fine. However when you eengage the blades the wires leading to the clutch melt and eventually short out and the blades quit. I have replaced the wire with a higher gauge wire and experienced the same problem. Any ideas? Is the clutch just shot? Any help you guys could give would be massively appreciated. I am looking to start a lawn service company in the near future and really could use some chips to fall my way. Thanks in advance.