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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through February 13, 2009 » Red Hot Exhaust « Previous Next »

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Hooliagn
Posted on Tuesday, February 10, 2009 - 06:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Anybody ever experience or see the exhaust glowing red hot ?

Because of all the gravel on the road I really can't ride the bike right now. However, I pull the bike out of the garage from time to time to let it run for a while. Tonight I noticed the rear exhaust section closest to the head glowing red.

Any thoughts or comment about this ???
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1_mike
Posted on Tuesday, February 10, 2009 - 06:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That's why my CR is sitting in the garage until I figure on which way to go for a fuel enrichment and timing adjustment method.

I did work on it the other day though...got my license plate. I removed the big tail, made up a filler and a bracket to hold the plate, nice and tight against the tail, right in front of the hump for the tail light.
Painted it flat black, blinkers are in the stock locations...looks good. Basically invisible.

Anyway, I've see too many engines ruined from low timing and or too lean a fuel mixture.
At rest, cold, my headers (full length) are dark blue and the bends are heading toward red. That's just not drivable in my book.

Luckily I have another bike to drive or I'd really be pissed (can I say that here?).

Mike
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Carbonbigfoot
Posted on Tuesday, February 10, 2009 - 07:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This issue has been discussed at length in these pages, hit the search function and you will find a wealth of information (opinion?).

My CR is bone stock, airbox cover off, goin like Hell, and no issues. (Knock on wood....)

My opinion is, they just do that. Yeah, they run a bit lean, but there you go.

Purely for what it's worth...!

Rob
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Dentguy
Posted on Tuesday, February 10, 2009 - 07:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So, without getting into all this again.

Anybody ever experience or see the exhaust glowing red hot ?
Yes.
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Hooliagn
Posted on Tuesday, February 10, 2009 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Cool, thanx all ....
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Ccryder
Posted on Tuesday, February 10, 2009 - 08:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sitting in your driveway is not typical a "RIDING" scenario. If you want to see red glowing headers just look inside my ST1300's fairing after it's been sitting for 5 mins!

Your cr is not running lean. Your timing is fine (what is "low" timing anyway???). I've even heard a few theories that when the headers are glowing like that it because of unburned fuel burning in the headers instead of the combustion chamber, kinda makes sense to me.

Later
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Gearhead571
Posted on Tuesday, February 10, 2009 - 10:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Look at any 06' or later injected Harley. They glow nice and bright in the Dark and they are air cooled. Never heard of any of those melting down. Beat the snot out of my low rider and never had a problem. Combustion temps+thin steel tube=red hot headers.
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Anonymous
Posted on Tuesday, February 10, 2009 - 11:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Combustion temps+thin steel tube=red hot

Correct. Mixtures are fine, spark lead is correct. Worst case is with a still bike, as the headers run hotter when no air is flowing over them. Try the same thing on a Ducati, a KTM, or a Honda. They'll all glow.
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Dentguy
Posted on Wednesday, February 11, 2009 - 12:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Combustion temps+thin steel tube=red hot
+1. Been said before, but there are plenty that will argue it.

Here you go Hooliagn. Lots of discussion about it.

http://www.badweatherbikers.com/buell/messages/290 431/421697.html?1229955888

(Message edited by dentguy on February 11, 2009)
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Chevycummins
Posted on Wednesday, February 11, 2009 - 07:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://www.badweatherbikers.com/buell/messages/290 431/423520.jpg
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Hooliagn
Posted on Wednesday, February 11, 2009 - 08:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Exactly ......
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Thedavyboy
Posted on Wednesday, February 11, 2009 - 09:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You should not be idling your engine unless your going to ride it . Your better off keeping the battery on a tender and wait till you are ready to take her out . I never start any of my bikes for the sake of starting them , makes no sense !
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Bob_thompson
Posted on Wednesday, February 11, 2009 - 11:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Dave(Thedavyboy), I totally agree with your first two statements, but while keeping my 1125R on a tender all through the winter I DO, occasionally(about every two weeks), start mine for two very good reasons. First to warm it to proper temperature to get rid of any moisture that may settle on engine components and secondly to coat ALL surfaces again with oil for the same basic reason "moisture", and to lube for the next cold startup. That does make sense to me. When I do this I first warm the engine with a small heater and then after firing use just the blower to add some air flow over the engine and exhaust. My pipes never glow. I like to warm the entire bike including the tires with an occasional ride during the winter when weather permits. But thats just me. Bob
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Thedavyboy
Posted on Wednesday, February 11, 2009 - 02:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep everyone has there own way of doing things and what work's for some may not work for other's . But I would think that if your idling a bike till the pipes glow you are doing something wrong .

(Message edited by thedavyboy on February 11, 2009)
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Hooliagn
Posted on Wednesday, February 11, 2009 - 02:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm doing nothing more then what would be done before a normal ride.
What else could I be doing, that would be wrong ?

After reading some of the others post, I remembered, I had a Kawasaki that did the same thing.
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Hootowl
Posted on Wednesday, February 11, 2009 - 03:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My X1 does the same thing. I've put 50K on it without issue.
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Slypiranna
Posted on Wednesday, February 11, 2009 - 05:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'd like just one questioned answered, again.

If this is the norm and/or so common on this bike and all the others...then why do not all the 1125's exhibit this glow?

Please be specific in your answer as we've argued this too many times before without getting anywhere. mm
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Hooliagn
Posted on Wednesday, February 11, 2009 - 05:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think the only reason I noticed mine is because it was dark out and I caught a glimpse of it shining from behind that plastic shield by the oil dip stick.

Many more may have the issue but may not be aware of it.

Just a thought.
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Gearhead571
Posted on Wednesday, February 11, 2009 - 06:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Its gotta be dark to see it and have been idling with no airflow over the tubes. You gotta look closer to the head as they don't glow all the way down.
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Chevycummins
Posted on Thursday, February 12, 2009 - 09:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Something that I noticed is that a few seconds after the fans kick on the glow goes away. My picture was taken of the front manifold just before the fans come on, a little airflow makes the glow go away.
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Thedavyboy
Posted on Thursday, February 12, 2009 - 09:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No I have never had an exhaust glow red before , during or even after riding . So that condition would not be normal for me . J.M.O.
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Ccryder
Posted on Thursday, February 12, 2009 - 10:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Michael:

WAAAY neat pict!



Can we get powder coating in that color ;+}?
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Carbonbigfoot
Posted on Thursday, February 12, 2009 - 11:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Looks like a picture of Mick Jagger!

R
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1_mike
Posted on Thursday, February 12, 2009 - 12:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sorry boys...when the engine surges....down the freeway and cement is boiling out of the center electrode of the spark plug...it TOO lean...!
14 to 1 mixture is TOO lean...period.

If you want good power...you tune to get the mid 12 to 1 area.

If you want mileage and power, lean down to high 12's or very low 13 to 1 range.

Been doing this too long to not see an excessively lean condition.

Mike

P.s. - Just to be sure you get what I'm saying with the AFR noted above....these values are abviously under power...not for cruseing, which should be a little leaner....but still not 14 or above to 1.

(Message edited by 1_mike on February 12, 2009)
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Chevycummins
Posted on Thursday, February 12, 2009 - 12:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

From what I can tell mine will idle anywhere from 14 to 15.5 to 1. Sometimes it will go up to 16 then drop back down. Still waiting to see what it is under load.
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Ponti1
Posted on Thursday, February 12, 2009 - 11:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have not believed that mine would glow. So I did the test...No light, let her idle until just before the fans kick on, and then take a peek. Sure enough, red and bright as the sun. Checked it the next morning in low-light just after sunrise, and no glowing.

I'm not saying it's right or wrong, but I'm not concerned for now. I'll be tuning (adding fuel) as soon as I can get consistent days above freezing.
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