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Bowlinga
Posted on Wednesday, October 27, 2010 - 07:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

just sent my bike to the shop cause at about 4 grand it starts coughing. but once i hit about 5 grand it runs just fine. the shop said that when they took the air filter off that it ran about 80% better??? said that it might be running too rich. how much are they gonna charge me for a remap if thats even a problem? any suggestions or past experiences from anyone?
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Froggy
Posted on Wednesday, October 27, 2010 - 07:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Can we have a little history of your bike? Year/model/mileage, any modifications? Service history?
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Bowlinga
Posted on Wednesday, October 27, 2010 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

03 xb9r 18000 miles. d&d exhaust with k&n. i bought it used and it already had all of this on it. as far as service history getting the oil changed.
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07xb12ss
Posted on Wednesday, October 27, 2010 - 08:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

You need a race ECM, but even with the race ECM, race filter, and race exhaust I have a dip there, I'm gonna try airbox mods to get more air in, but I think in your case you need more fuel.
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Iamarchangel
Posted on Wednesday, October 27, 2010 - 09:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have it happen right at 4000. If I stay there for several minutes, there is a loud pop.

Performance seems to be okay, and right close to it seems to be okay as well.

I've just learned to avoid that spot since it works so well every where else.

Apparently, there is a ECM change that takes place at 4100, so I see it as the top end of one system before the beginning of the next. I'm not going to worry about remapping for such a focused problem.

p.s.: on the '03, the stock ECM is the race ECM, you just use a race map.
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Bowlinga
Posted on Wednesday, October 27, 2010 - 09:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

so theres no fix? it just started doing this recently.
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Xoptimizedrsx
Posted on Thursday, October 28, 2010 - 12:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

the D&D pipe uses a lot less fuel in the middle than the race pipe and the stock pipe exactly in the issue area you have. I would say IMO it just way rich then catching back up at just a tad higher rpm.

remapping of the fuel will fix it. HD cant do it!!! Erik Buell Racing can or you can with one of a couple tools.
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Iamarchangel
Posted on Thursday, October 28, 2010 - 04:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Go with Xopti on this if you feel it must be fixed.

Me, it's such a narrow problem and the rest is so good, I'm leaving it alone.

If yours is happening through 4000 to 5000, then that would be an issue to resolve, even from 4000 to 43-4500 would be an issue.
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