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Raptor Fuel Mixture Distribution ?

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Old May 13, 2002 | 09:06 AM
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My plug always has one side cleaner than the other....even when seemingly dialed in perfect. Has anyone altered the standard main jet / needle stagger for more even fuel burn?
 
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Old May 13, 2002 | 10:22 AM
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if you are talking about the strap that is normal and is related to the heat range on your plug. for good info on reading plugs go to www.trinityracing.com and go to the tech tips section
 
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Old May 13, 2002 | 10:45 AM
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I am talking about the porcelain area used for plug reading....mine burnt cleaner on one side even when stock. This is primarily due to the head design. If you pull your plug now, does your plug look the same all the way around the porcelain? I am sure some guys have tried to eliminate this very small problem.....chime in guys! Thanks for the reply VRAPTOR.
 
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Old May 13, 2002 | 01:09 PM
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I can index my plug at any point....does'nt matter....I am still gonna have one side lighter than the other because of the fuel mixture distribution characteristics of the engine (unless I fine tune the needles and mains too get an even color throughout the porcelain area). Airrapter.....when you pull your spark plug......what does it look like?
I know every stock Raptor is identical too mine.....have any of you guys worked this out? Surely you guys have noticed this?
 
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