Gunk in Onan Marquis 7000 carb
Rebuilt the carb and cleaned it in a sonic cleaner. I can't believe the amount of gelled gas that was in the bowl. The unit ran fine until a couple of weeks ago it would stall under load. Cleaned c...
Forum Discussion
What you just have on that shop towel is more gelled stuff than I've seen in any carburetor. That must be years of accumulation.
Reddog is right about storage and how fuel (or the lack of it) works. There can be exceptions, though. During one winterization of equipment, I serviced 125 small engines. All had there tanks filled with Stabil mixed into the fuel. The following Spring, all of them started except 12 engines. All of those Kawasaki engines had gelled fuel in the primary jet. It is sometimes how the carburetor is built, particularly, how it is vented. The following year, those Kawasaki engines were stored without fuel and the following Spring, they all started and ran perfectly.
Reddog is right about storage and how fuel (or the lack of it) works. There can be exceptions, though. During one winterization of equipment, I serviced 125 small engines. All had there tanks filled with Stabil mixed into the fuel. The following Spring, all of them started except 12 engines. All of those Kawasaki engines had gelled fuel in the primary jet. It is sometimes how the carburetor is built, particularly, how it is vented. The following year, those Kawasaki engines were stored without fuel and the following Spring, they all started and ran perfectly.
