This does not make any sense?? WacoNut said the engine ran well for the first 2 tanks of fuel then ran rough. He then said the timing was at 40 deg. Why did the engine run well for the first 2 tanks with the timing at 40 deg. From what I understand the sensor bracket adjust range is only 2 degrees or so. Not sure how he went from 40 to 30 deg. My DLE 30 ran great for about an hour of run time in flight then started to roughen and now I cannot get more than 6000rpm on a 19x8. Was at 7700. Sounds bad. dle ignition is regulated at 5.8V and confirmed at 5.8V while running full throttle. Gone through carb and reeds. Tried rcexl ignition same result. Swaped fuel tanks. Tried NGK plug at .020 and .025. Something happened after an hour of flying and not sure what. At this point I'm about to pull the cylinder etc. Sucks!