I didn't try running it without the tape, so that could definitely be the problem. I really do need to meet up with someone. So far two people have messed with it at the field and couldn't get it running quite right. We've flushed the entire fuel system twice, including re-rigging the tank, as well as replaced all the tubing, still not better. The only club is in Twin Falls, about 1 1/2 hours away, and not many of them fly in the winter. Anyway, thanks for the info. I guess I'll practice my patience and wait until I can meet up with someone else. With my vast experience it could be something extremely simple and obvious, LOL.