I don't mean to nag on the subject, but going back to what dant said about the high end needle. You may not have an issue with fuel/flooding after you blow it out, but it may start to flood after turning it over a few times. I am not an engine "expert" and I am not even sure if it could happen like this, but maybe the needle is set too rich and flooding the engine before it starts. Sorry again to nag about it. It seems to be the only problem I can think of.