My tractor won't start. A little background: earlier this summer, the electric clutch would occasionally cut out while I was mowing but them start working again. A few weeks ago, the tractor would not start. When I turned the key, I could hear a click and I would loose all voltage. I tapped the solenoid and it started. Last time I mowed, 9/18, it started fine and the clutch did not cut out at all. When I was done mowing, I tried to start the tractor and it would not do anything! Then I found out the wire from the ignition to the solenoid was off. I tightened the spade connector and thought maybe that was the whole problem. Tonight, I tried to start it again. The starter clicked in a little and then nothing. I kept trying the starter but nothing. So, I started checking voltages. I have about 11.5 volts on the battery terminals and on the head of the cable where it clamps to the battery terminal. If the key is off, I also have about 11.5 volts on the red battery cable where it connects to the solenoid. BUT, if I turn the key on, the voltage on the battery cable at the solenoid drops to around 8.5 volts, but the voltage at the battery end of the cable stays at 11.5. Does this mean the battery cable is bad? Is my solenoid or starter bad? Any ideas? Thanks in advance!