Odd Spark Plug read

[Azraeille]

This is my spark plug. Notice that one side is nearly white while the other is a rich brown. Is this a problem? Moreover, is this a proper jet setting? This plug has been in for 500+ miles.





I apologize that they're so blurry. My phone hates taking very close up pictures.

[90GTVert]

That's actually no unusual. The way ports are aimed can make that happen and the ground strap shields that area. It's fine. Color looks pretty safe.

[Azraeille]

Thanks for the reply! That's a relief that it's normal. And even better that you think it's a good color. If you were to say whether it looks more on the lean or rich side, which would you say?

[90GTVert]

More toward rich, but if it's not having problems it's good. Rich is safe.

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