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carbon build up on spark plugs

Old Oct 11, 2010 | 09:52 PM
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iownme's Avatar
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Mudding
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From: NY
Default carbon build up on spark plugs

I'm getting a lot of carbon build up on the plugs, i'm using the 4 electrode type.
after around 6000 miles there is build up. there is also a ring of carbon around the exhaust.
My guess is there is air leaking somewhere, but i don't know where to start looking.
All the plugs have around the same amount of carbon.
Any one else experience this?
 
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Old Oct 12, 2010 | 09:08 AM
  #2  
Disco Mike's Avatar
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From: Denver, Colorado
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What brand of gas and octane? Have you replaced your plug wires with 8 mm wires?
 
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