I have a 50 NG that I pulled off one plane and finally mounted it on another after sitting for a few months. It ran fine before I removed it on the other plane but now will not feed fuel to the carb. I have checked the plumbing and that's all fine but it does not try to suck any fuel at all. I pulled the carb apart and every thing looks fine...cleaned the crap trap a little, not much in there though. Any ideas on what to try next? or should i just send it in for service?