I usually operate my tractor about 2 or 3 times a week for a couple of hours each time. Two weeks before Christmas, I fell and broke my left shoulder, and, I am 72 years old. So, it has been sitting for a while. Yesterday, I cranked it up and let it run for about 10 minutes. Ran fine. Tried to start it today and it will turn over, but will not start. Sounded like no fuel to engine. Checked fuel line and am getting fuel all the way up to the inlet nipple behind the air control vent(has a small wheel on it for bleeding the lines). No fuel to the lines that go to the injectors. Anybody have any idea what my problem might be. Thought I would take the air control vent off tomorrow and see if the nipple behind it is plugged. Could it be the fuel solenoid, and if so, where is it located. Just looking for answers. If anyone out there can offer any assistance, sure would appreciate it.