Reply To: What is wrong with my plugs?

[billw]

Top plug looks like it might be loosing spark and getting WASHED with fuel it can’t burn. That’s my guess, anyway. You say you have replaced the stator. I am not familiar with this particular motor, either. Does it have separate ignition coils? Can you swap them and see if the problem plug changes to the bottom one? I would also check for overheat, like Mumbles said, just to be safe. When you say “looses power,” ignition would be rather instantaneous or on-off in nature; whereas overheat would be a gradual drop off.

Long live American manufacturing!