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Buell Forum » XBoard » Archive through August 01, 2016 » Fast Idle wehn hot- issue 2008 Uyl XT « Previous Next »

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Cincymachine
Posted on Friday, July 15, 2016 - 11:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have been experiencing a fast idle after a ride of 40 min or more. When I stop at a light or such I put my Uly in neutral and my RPM's go up to 2k. If I pull in my clutch it usually drop to normal idle but not always. I do not know if it connected to the same issue but the neutral light stops working when it is hot as well.
What am I missing??

(Message edited by Cincymachine on July 15, 2016)
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Ljivasiv82
Posted on Friday, July 15, 2016 - 12:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I can only comment from the extensive reading/research I've done but am no expert. The Nuetral sounds like an electrical problem as wires soften and expand when hot, so it's more likely a compromised wire that shows its symptoms when everything warms up.

As far as high idle, it's either a leaking intake or problems with the ECM. It might leak significantly more when hot due to expansion and softness of seals, thus you notice it only then.
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Reepicheep
Posted on Friday, July 15, 2016 - 12:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I havent looked at my new (to me) manuals yet.... The 08's have an electronic idle control, right?

(The 2007's and earlier just have a screw.)
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Natexlh1000
Posted on Friday, July 15, 2016 - 01:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

2008 bike have that servo motor that controls the idle intake air. Yours may be sticky.
Mine was but it didn't do anything really as a result.

It's pretty easy to take it out and clean it with gumout or whatever if you pop off the airbox floor.
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Cincymachine
Posted on Friday, July 15, 2016 - 01:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes it does have an IAC.
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Ljivasiv82
Posted on Friday, July 15, 2016 - 02:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes 08+ have idle control adjustments electronically (ECM). 07 and before it was a screw adjustment.

(Message edited by LJIvasiv82 on July 15, 2016)
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