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Join Date: Jan 2008
Location: Stratford, Ontario, Canada
Posts: 37
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Black Soot from Exhaust
I am getting a lot of soot coming from my exhaust pipe. I noticed it on my garage floor where I park it. I also notice the soot on the tail pipe. The bike is a 2009 with 21000 Km on it. This has been happening for some time. I mentioned this to the dealer at the 20000 service was told this is normal because of the exhaust pipe configuration. I burn high test gas as recommended. Does this appear on any other Lt's.
Rolly
Rolly
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Senior Member
Join Date: Jul 2003
Location: Tucson, AZ, USA
Posts: 6,280
Re: Black Soot from Exhaust
Yep, since 1999.
Although I think it is due to over filling the oil - I don't have any proof. Except that mine seems to be cleaner!
Although I think it is due to over filling the oil - I don't have any proof. Except that mine seems to be cleaner!
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"Like Butt-ahh!"
Senior Member
Join Date: Apr 2004
Location: Round Rock, TX, USA
Posts: 7,794
Re: Black Soot from Exhaust
"Marking it's spot"
"They all do that."
"It is a FEATURE."
"ride it like you stole it."
"They all do that."
"It is a FEATURE."
"ride it like you stole it."
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Senior Member
Join Date: Apr 2002
Posts: 14,436
Re: Black Soot from Exhaust
Quote:
Originally Posted by cfell
"Marking it's spot"
"They all do that."
"It is a FEATURE."
"ride it like you stole it."
"They all do that."
"It is a FEATURE."
"ride it like you stole it."
Senior Member
Join Date: Mar 2006
Location: West Milford, NJ, USA
Posts: 978
Re: Black Soot from Exhaust
Yes, they all do that (*).
At least mine does.
(*) - standard reply to most BMW woes....
At least mine does.
(*) - standard reply to most BMW woes....
Robert in Northern NJ
'09 R12GS, '08 R12RT, '03 R1150RT, '01 F650GS - time to thin the herd?
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Senior Member
Join Date: May 2006
Location: Flossmoor, IL, USA
Posts: 831
Re: Black Soot from Exhaust
Has to do with the fuel mapping of the injection system. Yes, they all do it to some extent. If you ever rode behind another LT you would see what looks the exhaust from an old diesel truck coming from the pipe when gassing it to say, pass a car etc.
I have been told/read that it is to protect the combustion chamber from leaning out under extreme loads. Sumpthin' like that......
I have been told/read that it is to protect the combustion chamber from leaning out under extreme loads. Sumpthin' like that......
kk610lt
2007 K 1200 LT
2004 R 1150 GS Adventure
2002 K 1200 LT (totaled by a SUV 10-7-08)
1988 Concours
Why do bullets bounce off of Superman, but he ducks when you throw a gun at him?
Wrencher Extraordinaire
Join Date: May 2004
Location: Hazel Green, AL, USA
Posts: 13,307
Re: Black Soot from Exhaust
It is not oil related but rather due to a "full rich" mode by the ECU during cold start and for a short time after when the O2 sensor reaches temp. Even though it is a heated O2 sensor it still take a bit to warm up and provide feedback so the ECU just goes full rich. Same for WOT as well with a full rich.
John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN
Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT
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Senior Member
Join Date: Jul 2003
Location: Tucson, AZ, USA
Posts: 6,280
Re: Black Soot from Exhaust
Quote:
Originally Posted by jzeiler
It is not oil related but rather due to a "full rich" mode by the ECU during cold start and for a short time after when the O2 sensor reaches temp. Even though it is a heated O2 sensor it still take a bit to warm up and provide feedback so the ECU just goes full rich. Same for WOT as well with a full rich.
Ah shucks John, I was just trying to sneak an oil thread in here...
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Senior Member
Join Date: Sep 2008
Location: , Kansas, USA
Posts: 222
Member
Join Date: Jul 2005
Location: Houston, Texas, USA
Posts: 71
Re: Black Soot from Exhaust
Keep the revs up. Don't "get on it" from under 4K rpm. Downshift instead. That should lessen the sooting.
Senior Member
Join Date: Jun 2007
Location: Montgomery, TX, USA
Posts: 203
Re: Black Soot from Exhaust
On my 07, I notice it more if I let it idle a little long while gearing up. If I start it and back out of the garage within a minute or so it doesn't seem to do it. I always park on the center stand in the garage. Can't say I've ever paid any attention when away and left on the side stand.
Senior Member
Join Date: Jul 2005
Location: Victoria, TX, USA
Posts: 3,328
Re: Black Soot from Exhaust
Every once in a while I will clean the soot off the bike and it's back after a week or so. IT became a permanent part of the bike now.
"BONES" <///><
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2018 R1200RT
2002 K1200LTC--- Belle
"My wife and I have an understanding. I won't try to run her life and I won't try to run mine."
Senior Member
Join Date: Jun 2009
Location: University Place, WA, USA
Posts: 656
Re: Black Soot from Exhaust
Ditto
Quote:
Originally Posted by shuster
My 09 behaves the same way. 
The supreme irony of life is that hardly anyone gets out of it alive.
09 K1200 LT
Project LT:
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Future plans
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University Place, WA
Riding since 1969
Senior Member
Join Date: Jun 2007
Location: St-Lazare, Quebec, Canada
Posts: 514
Re: Black Soot from Exhaust
Rolly;
I think they all do that!!! Some more then others ( I don't have a ring in the garage) but there is some black dust !!
I think its more noticeable up north, because of the change in temperature, which makes the engine controller run richer.
How is Tom, hope to see you guys next summer!!!
Bowdon (Don)
I think they all do that!!! Some more then others ( I don't have a ring in the garage) but there is some black dust !!
I think its more noticeable up north, because of the change in temperature, which makes the engine controller run richer.
How is Tom, hope to see you guys next summer!!!
Bowdon (Don)
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