Ninja 250R Flutter/surge between 7 and 9K - Chicagoland Sportbikes
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post #1 of 7 (permalink) Old 04-13-2014, 05:04 PM Thread Starter
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Ninja 250R Flutter/surge between 7 and 9K

My Ninja 250R Flutters or surges between 7 and 9K. I just rebuilt the carbs and adjusted the floats. Any other ideas before I take the carbs apart ?

Bill
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post #2 of 7 (permalink) Old 04-13-2014, 06:29 PM
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Air leak. Loose intake boot, cap not on sync line. Carbs put together wrong. Lots of shit could be wrong. Who took the carbs apart and put them back together? You? I love these one where someone does all the work and then asks what's wrong. You took them apart you tell us

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post #3 of 7 (permalink) Old 04-14-2014, 08:06 AM Thread Starter
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Yes I disassembled the Carbs cleaned and adjusted the floats and re assembled. The bike now starts right up and runas without the choke which was an issue prior to doing the carb work. I asked for ideas on what might be wrong as I get back into this. Thanks for the ideas of an Air leak. Loose intake boot, cap not on sync line, carbs put together wrong........ I will definitly check all these.

How about losing the attitiude, I am doing all the work which is a lot more than others do. I asked for ideas from experts as I thought this is what the forum is for.

Bill
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post #4 of 7 (permalink) Old 04-14-2014, 04:50 PM
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Originally Posted by billmusa1 View Post

How about losing the attitiude, I am doing all the work which is a lot more than others do. I asked for ideas from experts as I thought this is what the forum is for.

Bill
hey now, remember being a proper asshole requires a certain level of expertise too! lol

hope you get it straightened out.

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I agree completely with Steve (nouseforaname)
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post #5 of 7 (permalink) Old 04-14-2014, 08:00 PM
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Dont mind grasshopper he doesn't get out much and huffs to much race gas.
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post #6 of 7 (permalink) Old 04-15-2014, 11:48 PM

 
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check vacuum lines from intake manifolds and that the clamps are tight. Check all air box side connections.
Is the lid on the air box correctly?

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I'd love to help but I don't chase parts.
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post #7 of 7 (permalink) Old 04-16-2014, 09:12 AM
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make sure the spark plug coils/ boots are securely down on the spark plugs, it could be missing due to being loose at that RPM vibration

-Jason
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