This is for bowl type carburetors only.
Small generator engine surging.
Your generator was designed to utilize specific fuel sources and anything else may cause problems in operation and irreparable damage.
Common issues which cause these surges include.
A surging generator is an indication that there is something wrong with your equipment.
Failing capacitor or other components.
If your generator is surging at idle then likely this small hole is either completely plugged or very restricted.
Partial blockage of main jet.
Signs of surging include.
Lights flicker between very bright and dim at a rapid pace machinery may run at varied speeds making sudden shifts between quick and slow.
To clear out the whole simply take a single wire from a steel brush or burn the paper or plastic off of a twist tie that you would use for a loaf of bread and use the inner wire to run through this hole several times and remote.
There are actually numerous causes for generator surging including.
In this video first i get the generator running then i decide to do the drastic move to ream out the jets on the carb as the engine was surging.
Engine will run but it surges hunts for a constant rpm 1.