Spark plug pattern

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Jxmiddle
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Joined: Sun Nov 25, 2012 10:48 pm
Main scooter: GP250 69 targa twin
Location: Tonbridge, Kent
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My lammie is running quite well at present but the plug has a weirded pattern, light and dark in different areas. Indicates to me that all is perhaps not well in the head? As I say its running well, a little boggy at low revs but nothing that I can't live with and better that than too lean. Muggy 225.

Thoughts anyone.

Thanks

John

http://www.flickr.com/photos/91303085@N06/13006282085/
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coaster
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Joined: Wed Jan 07, 2009 12:35 pm
Location: London and Norfolk
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Difficult to tell from a photo but that doesn't look too bad, what grade is it?
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