I took the carb apart on my 260 today cleaned out the jets and the bowl was filthy. I turned the main adjustment on the top out 1.5 turns same for the one on the bottom. I got it to fire up but slowly died and I noticed that gas was leaking out of the bottom of the bowl. I tightened it up so it would stop leaking but now I can't get it to fire. I did notice the small adjuster had some corrosion on the tip so I gently sanded it off.