For the record:
I did the 100 Hour service on my
L3240. Cleaned the fuel filter, opened the fuel cock, opened the air vent, started the engine, let it run for 30 sec, shut off, closed air vent.
A week later I started the engine, it ran for a minute then stalled. It would not start again. I removed the fuel filter a couple times to see if I messed up, tried with air vent open/closed etc. Left the tractor sit for a couple hours, no difference. Did a lot of cranking...
I then loosened the fuel filter a little bit so it was slightly leaking and left it that way. I cranked the engine and it started within 10 sec. Took a few minutes to run smoothly as I tightened the fuel filter and slowly closed the air vent. After that, no problems.
Question, the manual says to do the procedure with the tank full, mine was only 1/2 full. Could that possibly make a difference? Did I get air in the system because of this?