Spark plug condition

[22dog22]

Hi all looking at other parts of ignition system pulled plugs all appear to be light tan in color, have NGK gr4gp plugs, I was surprised at the center electrode it is very narrow compared to other plugs I have seen I looked on line at photos of the NGK plugs and they look like mine so I think they are fine, the very last threads have some carbon on them but the electrode area is a nice tan color photo not the greatest

 

[H22A4]

We will take your word on the plug condition!

Is anything in focus in that photo??

 

[Bewy]

Hard to see, but I see some very positive things!

Nice big gap.
Centre electrode is Platinum, which is why it is small...allows a bigger gap.
Not sooty.
Heat range 4, should give excellent idle quality, commensurate with the parts combo.
Take no notice of blackened threads. So many variables can affect this: where the last thread ends [ does it stick out of the head a bit or slightly recessed in the head ], how good the cooling is around the plug, etc.

 

[RustyRatRod]

Is anything in focus in that photo??

No. Not a damn thing.