In the past 2 races, I've had to put in 2 front bearings due to them leaking......Well, thats what I was thinking......

It is possible for an engine to be WAY TOO RICH on the bottom and act like the front bearing is spewing fuel?
Here is what the engine has been doing......
The first bearing, the seal kept popping out.....Second bearing, the seal was in tact, but the bottom half of the engine was covered in oil........Third bearing, metal shield........engine ran WAY TOO RICH on the bottom and had to lean it out almost 2 full turns....now, the fuel is minimal, but was thinking that maybee it was still just a little too rich....

I know that this might sound like a newbee question, but just curious if anybody else had the same thing happen?