I have a 32cc Ryobi trimmer that I bought the 10" pole-saw attachment for last year when I needed to dismember a tree that had partly fallen over. The trimmer is about 12 years old and seldom used. When I was using the saw it would start fine and would run OK in half-choke, but if I opened the choke fully it would generally die when I tried to accelerate. So I ran it on half choke, finished that job, and put the trimmer aside. Today I finally got around to rebuilding the carb; it was pretty clean and in good shape inside but I sprayed it out good and changed the screen and diaphragms anyway. Put it back on, and now it doesn't die right away when I accelerate with the choke open, but what it does do is sputter and shoot a gas-air mist out of the carb's air intake! It might have been doing this before also, but I had the air filter on and wouldn't have noticed. The other odd thing is that a little gas is bubbling out the pressure-relief hole in the gas cap, like the gas tank is being pressurized somehow. I thought it should be depressurized if anything. Anyone have any idea what the issue is? I'm in over my head at this point.