Quote:
Originally Posted by MCOULTER
If a plug shows a rich condition (all black) and I lean it out will the plug turn back to a normal color or once it is black it never goes back (please, no pun intended here).
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It would take a long long long time (no pun here). Plugs are cheap, install a new set.
Of course, a wide band monitor would allow you to read the A/F ratio a lot easier and quicker than reading spark plugs. Just a lot more expensive
http://www.innovatemotorsports.com/products/lm1.php
Edit - do not try to mechanically clean the plugs. Like I said - install new ones.