Parked it and now, no start

Yes, but you said it started first. The fuel went to the low side, and when you started it you emptied what was in the bowl and fuel lines to the head. No big deal, very common.

It can, and does. No big deal. It's just gravity

 

Correct. But, there’s enough fuel in the filter housing and lines to run the engine a good while, before it runs out. Seems like a bizarre situation, but, stranger things have happened. Good luck, with this. If nothing else, it’ll be a learning experience. Haha.

 

The strange thing is that it works fine when set to right tank only. I actually ran it out, planning on taking it off to clean it. I dropped a small plastic FFPE bottle in it a while back. Found part of it in the fuel filter. Had to be related. Maybe it was blocking fuel flow, and now isn’t. Not sure till I drop the tank, clean it, etc.

 

Pulling air trapped in the system, is my guess. Keep filling the filter housing and keep firing it up.

 

That’s all it is. You can try pressuring the tank, using an air blow gun. I’m guessing you have a davco filter. Make sure it’s not sucking air. I’d hit it with some ether when it starts sputtering. That’s just my opinion. Use at your own risk.

 

Be careful with starting fluid. Some engines have heating elements in their intakes. That element will ignite the starting fluid and blow apart stuff you thought was really strong. Haha.

 

Any Luck?