Wow. Thank you. That sounds quite extensive. Question on that is I did hit something almost 3 years ago, but it ran fine. This just started last year. Would that make a difference?
I have changed the plugs, tested the coils with a spark tester. The old plugs were black. It seems to have a little black smoke in the exhaust. I havent changed the oil yet. Thats next. I use Premium Gas and pour SeaFoam in when I fill it up.
Any other suggestions? I read something about the...