I have a 751 f series that will not start. 1. New battery and it is charged 2. New starter and all connections are tight 3. It was turning over but would not start. It would smoke some but not start. 4. I was trying to start it today and it still would not start. Then it must have blown something. Now there is no power at all when the key is turned on. Please help me.. it is driving me nuts… It has a kubota motor.