Hey guys, just finished chaining the oil and cleaning some exterior parts on this Honda GX120. I rode it around briefly, and then it started to make this awful clanking/knocking noise when running. The sound makes me think that two metal objects in the engine are hitting each other. I took off the starter pull to ensure that it was not the culprit, to no avail. The engine worked fine up until this point. I have not modified or touched the internals of the engine.
the sound is similar to what is in the video in the link below
the sound is similar to what is in the video in the link below