I don’t hear or feel the solenoid click, I swapped the starter relay and engine shut off relay as well as bought another one, the tractor will still crank so I don’t think it’s the relay. Using a digital multimeter I get 9.66 volts from the wire harness leading to the engine shut off solenoid. The tractor battery reads 12.14. I tested the original engine shut off solenoid by attaching wire leads to a car battery (bad thing to do?) and it retracts no problem. I thought I saw the voltage requirements for the engine shut off solenoid somewhere in my searches.