I'll check that but don't think it's my problem this time. I tried starting it with the gas cap off once and it still wouldn't pump. I think my problem might be in my homemade fuel line--it probably has an air leak, I had two lines and glued one inside the other, seemed to hold but I didn't check it for leaks. That's what I get for trying to save a few dollars on a new fuel line. If that's not it I'll probably look for some goo in the carb.