I asked this on the garden tractor forum,I'll ask here too,maybe somebody will know.
I've got an old Briggs and Stratton 4 horse upright with the gas tank under the carb on my power corn rake. There are 2 tubes that go down in to the tank. One long brass one that goes to the bottom,one plastic one that sits down in a little pan in the top of the tank. It'll only run as long as there's gas in that little pan. I took the long tube out,it's clean. I took the diaphragm out of the side where that tube feeds in to. Everything looks good in there. Is there supposed to be some check to stop that short tube from sucking air once that little pan is empty or something? That's all I can figure is going on.
I've got an old Briggs and Stratton 4 horse upright with the gas tank under the carb on my power corn rake. There are 2 tubes that go down in to the tank. One long brass one that goes to the bottom,one plastic one that sits down in a little pan in the top of the tank. It'll only run as long as there's gas in that little pan. I took the long tube out,it's clean. I took the diaphragm out of the side where that tube feeds in to. Everything looks good in there. Is there supposed to be some check to stop that short tube from sucking air once that little pan is empty or something? That's all I can figure is going on.