I have a White Outdoor LT-1850 Lawn Tractor (MTD). After jumping the mower because the battery was dead the engine will now not shut off even if you use the switch. To shut it down you have to disconnect the battery. After this you can connect the cables back to the battery and the engine will start up, once it starts up there is a loud buzzing noise and another thing is the PTO loses function. My first idea is the
starter soleniod is bad. Any ideas?