Help Reading Spark Plug Color

[jestercinti]

EDIT...added a little better picture.  The first one was blurry

Can't figure out if I am lean, rich, or ok:



Jetted to 20/65/142.5 1 washer lunchbox with stock exhaust.  800' above sea level in Cincinnati OH.

Any thoughts are appreciated.  Thanks.  jester

[salamander]

Looks a lot like mine -- a little bit of brown, but mostly white.  I'm curious to see what folks around here say about them, too.

[twocool]

Uh, out of focus?

Cookie

[Janx101]

squint your eyes ... it kinda works! 

[RossLH]

White on the hook and electrode = lean.

[bombsquad83]

From my little research on this topic, I think it looks lean, but possibly a little rich at idle.

[jestercinti]

Thanks everyone.  My exhaust valves are TIGHT (just got done checking them).  Wonder if that has something to do with it.  2009 F model 9200 miles. 

Intake RH & LH .05mm
Exhaust LH <.03mm
Exhaust RH .04mm. 

I'll check tomorrow after 24 hours "stone cold" and see if anything has changed.  Was last run 6 hours ago.

EDIT:  So I went from 2.78mm shims on the exhaust to 2.65mm.  Started up, and I noticed some things:

1.  Warm-up is extremely fast now.
2.  Any stumbling when cold is gone.
3.  No more stalling when I slow to a stop sign or a stop light.
4.  Overall runs better.

I was chasing everyhing BUT the valves (air cleaner, rejet, plugs, PAIR removal) and it was the valves.  Will NEVER let it go more than 4000 miles again.  Lesson learned.