You need to let air into the gas tank in order to let gas out, otherwise you'd end up with a vacuum in the tank.
I'm a science teacher, I should have known that, duh!
Absent-minded professor is more like it...thank you Fcubman!
Jtclays, your idea for that screw is next!
It's snowing and blowing like a madman here...the wind is creating some drifts that are chest high, and some areas that seem about knee deep. I had to fight my way into some of it today just to clear a spot for the dog to pee.
So here my plot thickens: for some reason (I have NO IDEA what the reason is), I decided to tighten up the bowl screw with a couple of cranks...maybe I misread something. It was a bad idea because fuel started dripping out of the carb...so DUMB!! So, I loosened the screw and retightened it, but gently...and a very slow drip continued. I tightened a bit more and the drip slowed...slowed so much that I put a piece of cardboard under the bowl and left it there. I came back after 15 min or so and found a drip spot. I repeated this process 2 or 3 more times (tighten the screw EVER SO gently, leave a piece of carboard, come back and check) and still found a very slow drip. Overnight, the very slow drip continued...not enough to leave fluid that could run, but a drip nonetheless. Can't get a new screw gasket (that's what broke on me last week) because I'm snowed in.
So here's the question: when the wind dies down and I don't mind opening the garage, should I bother to try and get this thing running with a slight fuel drip out of the carb??
Thanks much...I hope your snow removal efforts go smoother than mine!! A wife, two kids and a dog all trapped in here with me. Sam Adams, where are you??????