Gen 1: 2004-2005 Spark plug fouling - Kawasaki ZX-10R.net
 
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post #1 of 4 Old 05-08-2011, 10:12 AM Thread Starter
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Spark plug fouling

I have a zx10R engine in my race car. I have a problem with spark plug fouling. It is easy to change them out, but if possible I would like to find a cause and fix the problem. The outside plugs (1 & 4) are usually o.k. the inside plugs (2 & 3) are always fouled. I was wondering if the velocity stacks in the air cleaner could be causing the problem. Anyone have a thought?

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post #2 of 4 Old 05-08-2011, 12:04 PM
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I have velocity stacks for my middle plugs, they haven't fouled on me.

But here's how you would change them. BUT if you only plan on changing the 2 middle plugs, then you don't have to take off the side fairings or frame brace.

https://www.zx-10r.net/forum/showthread.php?t=94652
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post #3 of 4 Old 05-08-2011, 01:52 PM
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Quote:
Originally Posted by NinjeR View Post
I have velocity stacks for my middle plugs, they haven't fouled on me.

But here's how you would change them. BUT if you only plan on changing the 2 middle plugs, then you don't have to take off the side fairings or frame brace.

https://www.zx-10r.net/forum/showthread.php?t=94652
You might want to reread the thread lol, he said he has a zx10r engine in a race car, he said they are EASY to change, but would like a solution on why the keep fouling.


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post #4 of 4 Old 05-08-2011, 02:08 PM
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If the plugs keep fouling then isn't that because the motor is probably running waaaaaaaay too rich?

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