Kubota WG600 still wandering
 

Put a new distributor in today. Got a new kubota one with cap and rotor for $360. Engine runs significantly better. The misfire when hot it gone. The engine is nice an smooth. It still wants to wander some and then smooths out, then wanders again. Its only when off load, mostly when idling so not a big problem at this point. At least now it stays running. Carb has been cleaned, fuel cut offs cleaned, all new fuel line, new fuel pump, new fuel filter, and new plugs and as found in a post from Sam, I made sure the governor was set correctly.

The one I had that did that was because the spring would get into a harmonic vibration. It needed just a 1/2 twist of the spring to make it stop. Pic is before I twisted the spring.:beerchug:

Got it on the run now! :ThumbsUp:

If sams suggestion doesn't fix it, you can richen the bottom end. Top is set unfortunately.