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PostPosted: Mon Apr 16, 2018 4:28 pm 
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Joined: Tue Mar 15, 2011 10:06 pm
Posts: 14
Current ride: All sorts
Location: Swinetown
Afternoon folks

It's been 7 years since my last Buell and the opportunity for another has arisen....but it's a basket case. I'll list what is wrong with it - 06 XB12R

Basically it will only run on tickover and VERY rich. Next to no throttle response. Stinking of fuel at the exhaust. But it gets more interesting - here is what I have been told:

Riders scanned it and found no codes - yet there's an aftermarket can on there with no Lambda boss so no sensor is fitted (possible culprit no.1) sadly doesn't come with a stock part so that's something to seek out - or an appropriate aftermarket offering.

Static timing has been messed with and possibly cam timing (?!)

Compression and leakdown test on bores done - fine.

TPS valve possibly replaced

Exhaust valve disconnected

Aside from that it is rough but that's not an issue. It can be had for a bit less than what it's worth broken. Worth a stab at getting it back in order? Is there anyone I can take/send the ECM to to be checked? Is there any Buell specialists in the West Country who'd take this on that I could talk to?

Thanks chaps 8-)


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PostPosted: Mon Apr 16, 2018 8:03 pm 
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Location: Manchester
Probably something simple like an a temp sensor ?
Lambda sensor is on the rear header pipe not the muffler.
No such thing as a TPS valve.
Exhaust servo always disconnected with aftermarket mufflers.

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PostPosted: Tue Apr 17, 2018 1:16 am 
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Joined: Tue Mar 15, 2011 10:06 pm
Posts: 14
Current ride: All sorts
Location: Swinetown
Thanks for chipping in, some things are good to know.

Would the engine management not have a hissy fit if the lambda was unplugged?

TPS - not valve. My typo. Doesn't have one?

Thanks for clarifying about the exhaust valve.


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PostPosted: Tue Apr 17, 2018 6:30 am 
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proff. patpending
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Joined: Wed May 06, 2009 8:20 pm
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Location: Bristol - Gateway to all things good
You can turn error checking off in the ECM.

TPS is a sensor.

I can check your ECM for you, I am in Bristol.

Is your throttle shaft broken?

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PostPosted: Tue Apr 17, 2018 3:18 pm 
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Joined: Tue Mar 15, 2011 10:06 pm
Posts: 14
Current ride: All sorts
Location: Swinetown
Hello Nick, we actually met many moons ago - you facilitated the sale of my Uly, I dropped it off to your house I believe.

The questions are prospective, not bought the bike yet as I was trying to gauge what world of grief I would be getting into so can't answer the throttle shaft question, sorry. Encouraging to know I can get the ECM checked out though, thanks.


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