Carburetor idling problem. Briggs and Stratton 18.5 Hp engine on my riding lawnmower.
For the entire season my carburetor has been rough idling. By this I mean that it races up and down. When I look at the inside of the carburetor with the air filter off and the engine running I can see the gas shooting into center of the carburetor in spurts.
I attempted what the owners manual said to do about adjusting the idle speed screw. It seemed to help for a while but then the same problem with rough idling is occurring again. Now, after running the engine for a while then attempting to start it again it acts like it's flooded and will not start until it sits for a while. I'm willing to rebuild the carburetor. I removed it from the engine.
Do I need to order a carburetor rebuilt kit to include the fuel pump kit? Would it likely be the fuel pump? i removed the pump from carburetor housing and saw nothing wrong with it. Advise is appreciated if someone has an idea what I should attempt to do with it.