Going rich does seem very unusual, start over with very basic needle settings. Just get it to run. I have found on my DLE's that as little as a 1/16 of a turn can mean the difference between rich and lean. Low and Hi needles go hand in hand, one effects the other. Check the metering needle to be sure it is functioning correctly. I had one with a tiny piece of metal shaving sitting under it from the factory that kept it open a little and caused it to flood.