Old 07-26-2010, 06:46 PM
  #9  
Johnnysplits
 
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Default RE: 2 gallons later, whats my plug telling me?


ORIGINAL: Jgilk1

that plug tells me your running the plug a little hot (they dont make platinum or iridium so your fine)... which isnt a bad thing if its a little brown but your burning the electroid.... higher octane fuel will end up doing that.... take a wire brush clean it up regap and put it back in... your settings are fine
Of course iridium plugs are available for these engines...from ngk or denso. And by the way, using a wire brush to clean plugs will shorten their service life. You should runa folded piece of 120 grit sandpaper between the two electrodes only.