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Discussion Starter · #1 ·
I rejet my carb and would love your opinion on my spark plug while doing plug chop test
Here at 190 main dynojet
192359

Here at 185 main dynojet

192360

I am too lean or rich
 

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I think it’s a tad rich but not bad. If the bike runs good then I wouldn’t mess with it.
 

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i too have been trying to find the correct main jet size and needle valve height after installing a Kury Hypercharger. I’ve never seen 1/2 white and 1/2 black plugs before. All 4 plugs on my VTX1300C are like this. Any thoughts?
 
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