That is why I am thinking #4 is missing - firing every once in a while. Brand new plugs. its black, sooty, carbon fouling.
I can see one of the valves in #1 moving. The plug comes out looking new still (I haven't run it long enough for it to get grey yet) Can I move my head around and see the other valve at #1?
Do you think removing the thermostat might make it so cool that i can still touch the #1 spark plug, and that it might ? Headed to the boat soon.
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