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Old April 25th, 2012, 05:40 PM   #1
chikenstrips
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Popping during deceleration

Hey i have a 09 ninja 250 and i just put a slip on two brothers exhaust on it. I noticed popping on deceleration so i jetted it with a dj 100 main jet and a dj needle on the 3rd s pot with 2 spacers.I have the mixture screws turned out 3 turns each. it is still popping. Any suggestions?
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Old April 25th, 2012, 06:05 PM   #2
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http://www.ninjette.org/forums/showthread.php?t=9948

what size washers did u use for the needles??
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Old April 25th, 2012, 06:45 PM   #3
chikenstrips
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they were the shims that came with the Dynojet kit
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Old April 25th, 2012, 06:50 PM   #4
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Have you checked/felt around the exhaust connection for leaks? You should see water when you turn it on and feel air escaping.

Also, have you removed the Kleen Air system?

My slip on is popping after removing it, but there's a leak i am going to seal tomorrow.
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Old April 25th, 2012, 06:51 PM   #5
chikenstrips
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will removing the kleen air system work? and is it even needed since i only got a slip on so i still have my one cat in the exhaust still
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Old April 25th, 2012, 07:00 PM   #6
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Quote:
Originally Posted by chikenstrips View Post
will removing the kleen air system work? and is it even needed since i only got a slip on so i still have my one cat in the exhaust still
Well, it helps, and many people say it's a fix, or at least minimizes it greatly...as it did for me. Just search for kleen air system on here and read up, then decide for yourself if you think it's something you want to do. It's easy to do.
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