Is it actually starving for fuel (as in engine stalling out), or are you just worried that the filter has some air in it? If it's just the air bubble concerning you, it'll still fun just fine- it's still pumping fuel through the filter (you said it is idling, right? So it is getting fuel). If it's going to drive you nuts, mount the filter upright and the bubble will go away.
I'll try to get the air bubble out but I thought that the carb would such the air out. The filter is at a 45 degree angle. Do you think that it's sucking air maybe? Idle is fine but when I accelerate it sounds like I have a fancy cam in it.
