Hi Guys,
I fired up my new DLE-30 on my DRI and it ran really well for 2 tanks of fuel. I fired it up on the 3rd tank and after 5 minutes it started running really rough. I am using 93 octane gas and 32:1 oil. I pulled the plug and it looked like it was running a bit rich. I installed a new plug and turned the high speed needle in my 1/8 turn. The engine is still running really rough and will not obtain RPM's. It just vibrates really bad and spits and sputters like it is missing?

I am turning a Xoar 20x8 prop. During the 1st 2 tanks I only took the engine to full RPM a couple of times briefly and it ran fine. Most of the running was from 1/4 to 1/2 throttle.

Any ideas?
Anthony