Keeps burning up starter soleniods, last year we had a problem with the starter not wanting to disengage even after we turn the key switch off and we had to disconnect the battery to stop it. this year it burnt up the starter solenoid so we put a new one on it and it started fine and after running for sveral hours it would not start and the solenoid was fried again. so far we have installed 3 solenoids and fried them all. ther is now power on the starter solenoid after it starts and starter is not staying engaged