decat vs smell - BMW NineT Forum
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post #1 of 18 Old 04-03-2017, 11:55 AM Thread Starter
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decat vs smell

Hi, just installed new headers on my 9T and i notice that all my clothes (and i) are smelling like an exhaust on every ride!!! :-)
Anyone have experienced this ?!

Last edited by Freddie; 04-03-2017 at 12:09 PM.
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post #2 of 18 Old 04-03-2017, 12:20 PM
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I don't have these particular pipes; however, I've changed exhausts on over a dozen bikes. What you are describing could be an exhaust leak, which can be pretty easy to diagnose, but will require an extra set of hands.

To test for a leak, turn the bike on and have a partner block off the exhaust hole(s) with sturdy cardboard or pieces of wood. The first thing to do is listen to the change in the exhaust note. You may be lucky and hear a pronounced sound of exhaust escaping from the area of the leak. Absent that, go join by join feeling and listening for a leak. You'll likely find it pretty quickly, but I'd advise not to stop at the first leak you find.

Once you have the leak identified, remove the fittings to that point, apply exhaust join cement/compounds, and reassemble/retest. I've had this happen a handful of times and fixed it every time.

I go for the whole "dark and mysterious" thing, but usually settle for confusing.
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post #3 of 18 Old 04-03-2017, 12:24 PM Thread Starter
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Probably a leak, makes sense. I'll try to find out!
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post #4 of 18 Old 04-03-2017, 12:27 PM
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Quote:
Originally Posted by Freddie View Post
Probably a leak, makes sense. I'll try to find out!
Good luck, bud. A leak large enough to make you notice that kind of smell should be pretty easy to find (provided the strength of the smell isn't caused by you running the bike while in the garage admiring the sound. lol)

I'd still check back for other folks who may own those particular pipes too. They may have more information to offer, but this is a pretty easy and cheap diagnosis to start with.
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I go for the whole "dark and mysterious" thing, but usually settle for confusing.
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post #5 of 18 Old 04-03-2017, 12:29 PM
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Quote:
Originally Posted by Freddie View Post
Hi, just installed new headers on my 9T and i notice that all my clothes (and i) are smelling like an exhaust on every ride!!! :-)
Anyone have experienced this ?!
Those pipes look nice. Are they titanium?
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post #6 of 18 Old 04-03-2017, 12:42 PM Thread Starter
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No, SS and (at least new) same apparent​ quality as Akrapovic, the guy that help me out ( well, the guy that mount them) as the Akrapovic on a GS and was very impressed with the construction. And some 200€ cheaper.

Last edited by Freddie; 04-03-2017 at 12:52 PM.
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post #7 of 18 Old 04-04-2017, 08:32 AM
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Arrow makes great pipes/headers. I have a set on my Triumph Scrambler. I didn't know that Arrow made pipes/headers for the R nineT.

Send us a picture when everything is installed.
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post #8 of 18 Old 04-04-2017, 09:13 AM
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I installed Remus headers and my clothes do not smell but I noticed some smell when riding (at red light or stop). I guess that is normal because the cata is missing...


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post #9 of 18 Old 04-04-2017, 09:51 AM Thread Starter
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Probably , and with the accelerator module more gas into the equation!
But still, i will check for leaks.
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post #10 of 18 Old 05-19-2017, 12:25 AM
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Quote:
Originally Posted by Freddie View Post
Probably a leak, makes sense. I'll try to find out!
Hey Freddie,

Just wondering if you got that leak sorted and how the pipes are ageing/quality. Im about to pull the trigger on these and saw you had a set.

Cheers,
Tony
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