Honda 5hp engine only runs when choked. When choke is pushed in the engine shuts down. Pressure cleaner was running fine today for 90 minutes. Then the engine stopped. I was able to restart it for a few seconds. Then it stopped again. Engine will run if choked. Checked oil level. OK Checked choke linkage and governor linkage. OK Gas tank is full.

Hello
You may have a clogged main jet in the carburetor, remove the engine shroud to expose the carburetor, the carburetor will be held on in most cases by tow bolts and then a basket underneath, remove the carburetor and flip it over in a rag to catch the fuel, then remove the screws holding the fuel float bowl on, carefully work the bowl loose to avoid tearing the bowl gasket, if you do damage it you will need a carburetor repair kit. Once the float bowl is removed remove the floor and the needle valve at the fuel inlet, set them aside, using a can of spray carburetor cleaner spray the inside of the carb and then blow through the jets with compressed air to dislodge the dirt (this is a must) that is obstructing fuel flow and causing the lean stall out, reverse and reinstall you should be good to go.