I would imagine the entire pipe but the part I was talking about is the other end. Where it bolts to the exhaust port. Chunks of dry solid mess.
If the engine problem was in my hands I’d do it exactly as I wrote above and not cut any corners. It’s not that much work and very little cost. It could very well put you back on track to running well.
Ok - here are some pics of the carburator. View attachment 194494 View attachment 194495
Ironically, its brand is "Runwell". I removed the red part.
So, the general consensus is not to consider rejetting the carb, right?
We are assuming that this was all the doing of excessive oil in the fuel, if I understand correctly