Acts Like An Intake Leak???

[notsure]

I have an 04 XB12S that had a Jardine slip-on exhaust and recently after the bike is good and warm, the throttle takes forever to come down to idle making me think it was an intake leak. I just had a Micron exhaust system installed and after a few days it seems to be getting worse. The mechanic who I trust said he checked the intake and there is no leak. Any ideas? It only occurs after a few miles on the highway to get the bike good and hot.

 

[anrkizm95]

possible tps problem,

 

[dallasb]

+1 on the tps

 

[notsure]

We discussed that but why only when it gets really warmed up? I can run around city streets and it is fine, but once I get on the freeway and crank it for a few miles it stays that way until I park it.

 

[bentlife]

My bike would do this to but just everynow and then and it's the opposite mostly happens after sitting in traffic...

 

[anrkizm95]

the circuits in the tps get hot and break down.this is a common problem with late 90 and early 2000 fords.buell runs a ford tps.it could also be a IAC valve dont know if the early xb has one but my 09 does.just trying to give you some ideas.

 

[notsure]

I am new to this forum and I want to thank you all!

 

[konarider94]

if the idle is set kind of high it can hang according to the manual. when it does settle at an rpm what is it?

 

[notsure]

1000

 

[turbines]

Mine is doing the same thing. Possible intake leak. Before I do anything mechanical to the motor I will do a TPS reset first after my cable gets here.
I spent several hours trying to get some Genuine James intake seals here in DFW area and came up empty handed. So I ordered some from a non HD dealer here in town. I was thinking it wouldn't be hard to get the seals but...
The James Part# for my 05 XB12R is: JGI26995-86-A
The Buell part # is: 26995-86B

 

[Stevenc150]

if the idle is set kind of high it can hang according to the manual. when it does settle at an rpm what is it?

After a TPS reset for good measure, set idle as close to 950 as you can. Can make a world of difference

Edit: Oh, and be sure you've got the bike fully warmed up before adjusting idle 'cause it makes a huge difference also.

 

[Trill]

The way you put it, it seems that on the highway the bike is learning and applying the changes to a bad tune. Should really consider a tune but also double check the intake leak as well.