My neighbor has a 2210 JD with a T3NE74 Yanmar Engine . When you turn the ignition on the engine fires up and soon as you release the key it shuts off.I am thinking it is the fuel shutoff solenoid . Has anyone ever experienced this? Fuel filter, air filters, have been changed. Fuel bowel is plastic anyone have any issues of sucking air from bowel? Any comments would be greatly appreciated. I am just trying to help out my neighbor, she lives by herself.