Spark plug question

jess_monster /
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When the porcelain on the spark plug turns brown what does that mean? i.e. too rich/lean cold/hot. Thanks.

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Subject Written By Posted
  Spark plug questionTopic by: jess_monster jess_monster 07/31/01 07:44PM
  Re: Spark plug questionRe: XBrandon EdgeX XBrandon EdgeX 07/31/01 08:06PM
  Re: Spark plug questionRe: Ron Brown Ron Brown 07/31/01 08:16PM
  Re: Spark plug questionRe: jess_monster jess_monster 07/31/01 08:53PM

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