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Running lean?

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Old Nov 26, 2018 | 12:42 AM
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Default Running lean?

It's been a while since I needed to read spark plugs, but these SEEM lean to me, what do you folks say? Remember this bike came to me, with an SE air filter installed with stock exhaust.







 
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Old Nov 26, 2018 | 04:45 AM
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Once upon a time, when we had leaded fuel, it was easy to read spark plugs - I don't find that to be the case these days! It'll be interesting to see what our experts say.
 
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Old Nov 26, 2018 | 07:27 AM
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Looks pretty fine to me. If anything, it's a tad on the rich side, but I wouldn't change anything. The porcelain is not used to determine jetting.
 
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Old Nov 26, 2018 | 07:36 AM
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Pay atn to all the plug readers here on the net .
They are so dammed good they will argue with an AFR meter.
Now ask most these experts how to do a REAL plug check, if it could be done...IF
And it CANT be done unless you go get real gas like stated above.
And then it is an all-day process.
 

Last edited by Kingglide549; Nov 26, 2018 at 08:30 AM.
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Old Nov 26, 2018 | 08:10 AM
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Originally Posted by Scuba10jdl
Looks pretty fine to me. If anything, it's a tad on the rich side, but I wouldn't change anything. The porcelain is not used to determine jetting.
I agree.

John
 
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Old Nov 26, 2018 | 10:07 AM
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Well I am not as out of touch as I thought. Ok leave it alone.
 
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Old Nov 26, 2018 | 11:37 AM
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Your just guessing ..if you are concerned at all.
 
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Old Nov 26, 2018 | 11:43 AM
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I wasn't guessing either way, was curious. My bike came with a SE intake and others had commented I might be running lean already, so I posted the pick of the plugs.
 
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Old Nov 26, 2018 | 12:02 PM
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Originally Posted by handirifle
I wasn't guessing either way, was curious. My bike came with a SE intake and others had commented I might be running lean already, so I posted the pick of the plugs.
If you want to know what is going on you have to use the correct tools.
Please go read how to do a proper plug check, and then you will know that NO one here has the answer for you.
 
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Old Nov 26, 2018 | 12:36 PM
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My bike sounded lean with a raspy horrible exhaust note. Lean running has a sound, no need to see the plugs for that.
 
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