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[Mgs] spark plug color

Subject: [Mgs] spark plug color
From: sdesalvo at frontiernet.net (sdesalvo at frontiernet.net)
Date: Tue, 26 Apr 2011 18:05:46 +0000 (UTC)
Hi All,
Cleaned the plugs on my '78 MGB and found cylinders 1, 2, and 3 with fluffy 
black coating. I conclude I have a "rich" condition. Cylinder 4 is light brown, 
no fluff. What would cause only one cylinder to be different from the other 3?
Thanks in advance,
Sam

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