CBR 929RR 2000 - 2001 CBR 929RR Forum

serpent exhaust ?

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Old May 10, 2009 | 07:50 PM
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929rc51's Avatar
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Default serpent exhaust ?

i just put on a full serpent exhaust and permanently opened the flapper valve to 100% since the servo is gone. i have a k&N and a PCIII with the micron full race exhaust and stock air cleaner map since k&n filter isn't an option. but between 2-4k rpm's i have a hell of a flat spot and lag. does anyone know how to fix this prob? or does anyone else have this prob rather? do i need to custom map it which i dont know how to do lol please help
 
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Old May 16, 2009 | 10:05 AM
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so i talked to dynoet over the phone n told him my prob he emailed me a custom map but its still there but slightly better. but i was wondering has anyone ever ran a 954 map on a 929 and would it help?
 
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Old Jun 24, 2009 | 10:58 AM
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Have you dynoed the bike since the change? This is going to give the most information on what is wrong in that RPM range.
 
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Old Jun 24, 2009 | 04:09 PM
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most likely you need a custom map. running a 954 map wouldn't be the wisest thing to do as the bikes are set-up differnet somewhat in motors and other things.

Your best bet is to get a custom map done so that everything runs right and your not running rich/lean..
 
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Old Jun 29, 2009 | 08:10 AM
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+1 for the custom map. I should be going to get mine done in a few weeks!! WOOT!!
 
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Old Jul 2, 2009 | 06:54 PM
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ok so i dont have anyone close to custom map right now so i've been tuning myself trying to get rid of the kinks until i can get it professionally done but it doesn't matter where i put the numbers from -99 all the way to +100 it doesn't get rid of the stutter in my low range i don't understand how a custom map will delete this problem should i be checking somewhere else? injectors, spark plugs...ect
 
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Old Jul 6, 2009 | 09:51 PM
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I don't think that a custom map will get it completely smooth, but it should help a lot if done right. A lot of people I've talked to have had good results....
 
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