LarryLevet
New member
I am new to this site and I hope someone can help me out. My JD 4120 was running fine until I came to start it on Monday. Would crank but not start. Clean some water out of the fuel filter and then followed JD info on priming and bleeding air. Still did not start. Next I installed a new fuel filter and followed same priming and air bleeding procedure. Still just cranks and not start. Checked the by-pass fuel line coming back to the tank and when I cranked it there was fuel coming out of that line. Not sure what to try next. Help!!!!