Intermittent Temporary Rich Engine Start-Up Condition?

[edasmus]

Herb:

After a flight last weekend, I have noticed a very very slight drip of fuel coming from the cylinder drain tube from my rear engine. I have never noticed this before. I sat and watched the tube for about 10 minutes and witnessed maybe one drip per 90 to 120 seconds on average. I was reading this thread and was wondering if you ever resolved all this with a high confidence level as to the cause?

Thanks, Ed