Rough O-200

[Bill Greenwood]

Tom , remember Eric said he had even tried a totally different carb and no improvement. And if carb is really lean at idle then it would likely be hard to start, need a lot of prime and die soon when on idle. And there isnt a fuel pump in the system so even less to go wrong.

Eric , a very long shot, but I tallked to an a&p working on a C172, and he said to look in exhaust pipe that sometimes baffles can come loose and partially block it.About the only other thing you havent mentioned it the door for carb heat. Is it secure and off when you are running the engine? Even carb heat partially on would enrich the mixture, but hard to see how it would be the miss you describe.