UK Buell Enthusiasts Group
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Throttle Body Wear on XB12Scg
https://ukbeg.com/forum/viewtopic.php?f=8&t=800
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Author:  grillphilbuell [ 02 Jun 2009 14:22 ]
Post subject:  Throttle Body Wear on XB12Scg

I've spent the morning replacing a Idle Cable and doing a Hard Reset of the TPS.

After cleaning out the crud from the throttle body intake I came accross a worn area where the butterfly valve has worn a groove into the side of the TB.

See Pic..

http://i40.photobucket.com/albums/e236/ ... C00641.jpg

Ignor the white flash seen in the picture but look by the hole & you will see where the BV has worn a groove in the TB ali casting. This creates a sticking point for the butterfly. Is this serious or am I overcausious. :?:

It also makes doing a TPS reset a pain as the butterly sticks.

The wear is probably due to the fact that the TB is at a slight angle forwards, thus the butterfly's weight is forwards as well. Get my drift :?: There is no wear on the other side towards the back end of the bike.

I've only cleaned the area with Carb Cleaner & NOT tried to smooth out this wear as this would cause untold problems.

What do you techs advise :?:

Thanks,

Phil.

Author:  pash [ 02 Jun 2009 15:09 ]
Post subject:  Re: Throttle Body Wear on XB12Scg

grillphilbuell wrote:
It also makes doing a TPS reset a pain as the butterly sticks.


At least you know it is closed when doing the TPS reset.

This will not cause a problem as the throttle butterfly is *slightly* open (5 deg or so) at idle and is resting on the idle screw as the stop.

I wouldn't bother dressing it up...

Author:  Lands End [ 03 Jun 2009 00:01 ]
Post subject:  Re: Throttle Body Wear on XB12Scg

:yt: ;)

Author:  lamo [ 03 Jun 2009 21:18 ]
Post subject:  Re: Throttle Body Wear on XB12Scg

What's the hole next to the butterfly I've read of a couple of butterfly shafts breaking on the bad weather forum ?

Author:  grillphilbuell [ 05 Jun 2009 10:36 ]
Post subject:  Re: Throttle Body Wear on XB12Scg

I think it is only an Air Hole but I'm sure the techs here might confirm :askmaz:

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