Have a 06 PW80 which sat around for about 4 months w/o use. When fuel was added it all drained out of carburator. Opened up carb, cleaned it out and reset float. This fixed that problem. Now it is damn hard to get the thing started and when I do it either runs sluggish or races. Tried adjusting fuel and air intake with mixed results (just can't get the mix right). When the bike seems to be running ok and I shift to first gear it stalls out (automatic). Do i need whole new carb set up or is there something I'm not seeing. I am new to this whole thing. Any advise on where I should start (restart perhaps) on this?