Running Lean Gray Plugs

[black knight]

Any suggestions one fixing a lean situation.
I pulled my plugs couple days ago to see how they where doing and they where all gray. Mostly on the electrode that comes from the side over the top of the main center electrode.
Adjust Co2 settings????
Ive run the sea foam threw almost 2 tanks so i'm hoping everything is clean threw the fuel system.

Any thought appreciated

 

[TBay Sledhead]

Are they that colour just when idling? What colour is the insulator down inside? To check your plugs for any specific throttle setting you need to run the machine at that setting ie 1/2 or full throttle and then hit the kill button, remove the plugs and read them.

 

[KevinS]

Grey to light brown is good.

 

[Sled Dog]

Tan is perfect color.

 

[black knight]

Center Electrode is light Tan to Gray. outer electrode is gray/white

 

[TBay Sledhead]

Sounds good to me.

 

[helmic]

plugs

The Apex is on the lean side out off the box..mine is a 07 GT and the plugs as been like that since new.Now as 10000.mile and 6000 miles on boost and runs like a top so leave it.The plug are just fine.

 

[Sled Dog]

Yup leave er b

 

[black knight]

cool i have 22,500km on it. its in my shop for a cleaning so if i think of it i will pull a plug and take a pic

 

[thor452]

would the sea foam also clean the plug and wash away some of the color?