If you get desperate try looking for a new one. I tried to rebuild my Sears Generator's carb last year with the usual success. Then I started looking on the net using the make and model on the carb body. I found one for $35 on Amazon Prime of all places just like body parts for my truck, whod a thought?. Anyways, I stuck it on and never touched it, worked fine. Ethanol gas is the usual suspect. It just plugs small carbs while it seems fine in the larger ones.