Dave,
Mine is exactly the same but runs well at over 100 hrs now.
I would not be worried
Bill
>
> hi group,
>
> I have now noticed my #1 spark plugs are noticeably darker than the other
> three cylinders. It has been this way since day one, but I was hoping for
> improvement with engine break in.
>
> Has anyone out there run into this? The plug color is borderline "black"
> velvet. I have black spitting out the exhaust somewhat and also my mag
check
> shows a larger drop than I would like to see.
>
> One thing after another!
>
> Dave
> A227
> Mini U2
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