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Low Idle After Prolonged Speed

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Old Jun 15th, 2011, 12:21 PM     #1
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Low Idle After Prolonged Speed

I have been noticing when I'm traveling 65-75 for awhile, and come to a stop, like coming off the interstate, that my idle, which normally sits around 900-1000, goes to about 5-600 RPM and hangs there, then after about a minute or two starts to creep back up to normal. When this does this, if I blip the throttle a couple times it usually corrects itself. It runs fine w no backfiring or anything like that. Is this normal for the bike to do this? Bike is 2003 Ultra. 88cid.
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Old Jun 15th, 2011, 12:32 PM     #2
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Re: Low Idle After Prolonged Speed

No, not normal. Sticky or binding IAC stepper could certainly be the problem.
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Old Jun 15th, 2011, 02:22 PM     #3
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Re: Low Idle After Prolonged Speed

I agree with Hoop.

Harley Davidson Community (Idle Air Control (IAC))
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Old Jun 15th, 2011, 03:09 PM     #4
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Re: Low Idle After Prolonged Speed

Easy fix?
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Old Jun 15th, 2011, 04:47 PM     #5
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Re: Low Idle After Prolonged Speed

Quote: Originally Posted by propflux01 View Post
Easy fix?

Did you see the link in post #3?
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Old Jun 15th, 2011, 05:24 PM     #6
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Re: Low Idle After Prolonged Speed

I see it now, sorry about that, was reading this on a smartphone. Will try that first
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Old Jun 15th, 2011, 06:35 PM     #7
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Re: Low Idle After Prolonged Speed

Harley Davidson Community (00-03 HD Codes And Activation) have a look here to to be sure
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Old Jun 15th, 2011, 09:14 PM     #8
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Re: Low Idle After Prolonged Speed

No codes set or noted.
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Old Jun 19th, 2011, 11:09 PM     #9
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Re: Low Idle After Prolonged Speed

Just an update, Sprayed out the hole, and butterfly area. Wasn't clogged or anything that I could tell but some blackness came out. Rode today, only had it happen once, but only went down to 800 this time, and worked ok the rest of the times I stopped. hopefully We got it...
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