Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** will be assisting you.
Did you by chance turn the mower on its side when changing the oil?
Remove the air filter and start the machine and see if makes any difference. I would not mow with it this way but just to check it.
Then the next suggestion that I have is to clean the carburetor thoroughly. It sounds like there is something that has made its way into the carburetor and is blocking or partially blocking the jets which is not allowing enough fuel to pass through to keep the engine running at a steady or constant rpm.
You could add a carburetor cleaning agent similar to SeaFoam but the machine will then need to run for possibly and hour if not longer for it to do any good. The carburetor is right behind the air filter base or assembly.
There are no adjustments that can be made on this carburetor. It is fixed jetting and can't be adjusted due to EPA emission regulations. It could however have something partially blocking the jets that would cause this symptom or issue.
I am including a picture of the carburetor with this comment or post so that you might get a better idea of what you are looking for. The reference that I have made to cleaning the jets would be to look at the diagram and pick out the bowl nut that holds the carburetor bowl on (reference # *****), this has three holes in it that serve as the main jets for the carburetor if any one of them becomes blocked or even partially blocked it can cause the machine to run the way that you are describing.
No, there is really not one preferred over another. I just know that in my area everyone talks about how good SeaFoam is, myself I don't really believe that it does what the company says that it will but everyone has their opinions.
Thank you it has been a pleasure to assist you.
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