ORIGINAL: proptop
How does the plug look...might need a new one?
Tried a new plug.. no difference. old plug has about 5 quarts on it - outer rim was a little black with one small spot where some of the carbon had come off (sucked some water spray in yesterday on a couple of sharp turns) The byrons fuel has more synthetic oil, so I am guessing thats where the carbon is coming from. When I was running just the Sig fuel, I didnt have any carbon at all on the plug or top of the piston.
I think there is a chunk of crap that got into the carb or something. I just find it odd that it ran so much different today and it ran fine yesterday.. Compression is the same as its always been, and no "tight" spots except at TDC. (cant notice it with the plug in but with the plug out I can still feel a little pinch at TDC. The muffler baffle has been removed to help with the rich transition.