Just one off ph's bike to see what is happening. Would like to compare it to what mine does...

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08 Specialized Langster

My story

When I bought it, 2nd tank fill from std to super unleaded the bike stuttered and generally didn't like it. It even cut out at tickover while Mitch was over as it was ticking over in my garage. I put it down to the fuel grade.

1st service was a late one. I think around 1100miles? About 800 miles, I think, my exhaust was changed to Free Spirits headers and can.

There was about a 400mile gap riding with new exhaust and having 1st problem. The bike was noticeable flat from about 4000rpm with new exhaust. Had the service rode home the long way round no problem. Took the bike out for the 2nd ride since service and front header piped vibrated loose. Fixed it at side of road, about an hour later and the bike started in crap mode. Poor idle, poor running. Since then I put it down to the header popping off but to be honest it was so close to the service that I really can't say weather is was the service or the exhaust at fault. Before then, for 40 miles, it ran lovely - I so I remember.

So you want Powerizer and Pipercross off?

Ideally yes.

To me, the Powerizer is a diversion from the truth...

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08 Specialized Langster

Tell you what, I will run two tests, with and without Powerizer/Pipercross - it can't hurt. Never know, my bike may fail in one of them.

Just need to figure out how to use this ECMspy?

can we use ecm spy on our 08 on bikes i some how am thinkin i cant and saw some where thts y tuning remappin is easier on the earlier bikes has any one seen the thread i posted on stumbled on this???? thought he was using tht device as tuning re mapping wasnt possible

Out at my bike last night.

Have the air filter tray off.

My garage was probably about 5 degrees C or lower.

With my meter set to resistance I got a reading of 75 from the IAT sensor.......very scientifically I then breathed on the sensor for about 30 seconds and then took another reading and it was 45.1

So seems the resistance changes as the temp changes which would seem to indicate the sensor is working or at least doing something !!

So think I might go ahead a try fit some kind of heat shield under the tray......will see whats available form local motor factors and is cheap !!

Eric.

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'09 XB12XT
'02 Beta Alp 200
'82 + '83 CX500 euroSports's
'83 CX650 Custom
Green "4 Legged" SUV (now galloping the great plains in the sky !!)

It is a thermistor

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08 Specialized Langster

ok Pash, didnt know that....I'm not sure what it is but it changes readings as temp changes.....so at least I know its doing something.

Eric.

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'09 XB12XT
'02 Beta Alp 200
'82 + '83 CX500 euroSports's
'83 CX650 Custom
Green "4 Legged" SUV (now galloping the great plains in the sky !!)

I'd be tempted to whip the header off, and refit it with a new gasket. Can't do any harm and would rule out any exhaust leeks.

Well I did buy a couple of gaskets, not yet fitted. I did recently tighten the front header. Although I would like to replace both gaskets just so I know it's been done I would only change the front one cause its a real pain to remove the headers completely. Could a small gap in the gasket cause these problems? Is the buell that intolerant?

But is it blowing?

One of the nuts fell off the front header on my S1 and it was still just as nice to ride, just a bit louder!

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08 Specialized Langster

Yes but the S1 doesn't have all the engine management that mine does? Anyways three nuts came off mine, 2x exhaust nuts and the nut riding it!

Is it blowing? Not that I'm aware of but there could be some light gasses or would you notice them too?

Light gases?

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08 Specialized Langster

Yes not your full force blowing but a little seapage, like a small fart