Kawasaki Concours Forum
The C-14, aka Kawasaki Concours-14, the new one :) => Accessories and modifications - C14/GTR 1400 => Topic started by: Darknesses on July 11, 2012, 06:08:10 PM
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I installed a Vance and Hines CS One on my 2011. it looks and sounds great but now there is a slight engine miss at low RPMs in first and second gear. Other than that she is running perfectly. Any ideas?
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Sell it and get an Area P or Muzzy instead. ;)
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Just for Pokey's sake, I will point out that it is not an "aftermarket exhaust", it is an "aftermarket muffler" or even "aftermarket silencer" :)
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Just for Pokey's sake, I will point out that it is not an "aftermarket exhaust", it is an "aftermarket muffler" or even "aftermarket silencer" :)
http://www.areapnolimits.com/products/Slip-On-Exhaust.php (http://www.areapnolimits.com/products/Slip-On-Exhaust.php) REALLY?
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http://www.areapnolimits.com/products/Slip-On-Exhaust.php (http://www.areapnolimits.com/products/Slip-On-Exhaust.php) REALLY?
:)
Well.... guess it depends. Where I grew up, the "exhaust system" (AKA "exhaust") was everything from the exhaust manifold, through the front pipes, cat, mid pipes, muffler, and tailpipe.
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- get a room fellas ...
:)
.
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Back to the issue at hand. Is this 'miss' occurring during acceleration or deceleration?
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There is no way that a slip on exhaust should create any issues with the way the bike runs. I'm guessing it is unrelated, or when you installed it you accidentally knocked a wire connector off something (although I can't imagine what). Good luck and keep us posted.
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Pure speculation here, I would guess that the "Miss" was always there, the differance being you can hear it now. Easy check, reinstall the launcher and see if the miss goes away.
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Pure speculation here, I would guess that the "Miss" was always there, the differance being you can hear it now. Easy check, reinstall the launcher and see if the miss goes away.
Well, if you can't hear the miss with the launcher installed wouldn't it seem to go away if you reinstalled the stock pipe? It'd still be there, it would just be silent again...
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I installed a Vance and Hines CS One on my 2011. it looks and sounds great but now there is a slight engine miss at low RPMs in first and second gear. Other than that she is running perfectly. Any ideas?
You've had this muffler since November, has it been missing the whole time?
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If the "miss" is only on deceleration, it is probably a backfire/burble everyone encounters with an after market muffler. Try the "holeshot" fix. http://www.holeshot.com/ (http://www.holeshot.com/)
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There is no way that a slip on exhaust should create any issues with the way the bike runs
+1
That was kinda the whole point of my saying this is not an "aftermarket exhaust", if it were, that might actually account for something.
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This could be caused by more air moving through the new can and the bike running leaner because of it.
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There is no way that a slip on exhaust should create any issues with the way the bike runs. I'm guessing it is unrelated, or when you installed it you accidentally knocked a wire connector off something (although I can't imagine what). Good luck and keep us posted.
Not true at all, especially if the fueling is somewhat lean to begin with "which the C14 is not".
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+1
That was kinda the whole point of my saying this is not an "aftermarket exhaust", if it were, that might actually account for something.
And you have no idea what you are talking about. ;)
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And you have no idea what you are talking about. ;)
Yeah, right! As my friend's daughter says.... " W H A T E V E RRRRRRRRRRRRRRRRRRRRRR"
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I have a 2011 with the vance and hines CS1 with no issues. is this your first time putting a pipe on a bike? You mght be hearing the burbling on deceleration is all. Every bike ive owned i put a pipe on it and never had any issues except the burbling and occasional pop on the decel. It isnt a problem and you will learn to enjoy it .
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Boys, and you know who I'm talking about...
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Not true at all, especially if the fueling is somewhat lean to begin with "which the C14 is not".
On a bike with the catalytic converter still in the header pipes (meaning still on the bike) there is just not that much difference in back pressure with a slip on pipe vs stock.
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On a bike with the catalytic converter still in the header pipes (meaning still on the bike) there is just not that much difference in back pressure with a slip on pipe vs stock.
I wouldn't think so either.
Another interesting note- headers, pipes, mufflers, etc are tuned/sized for specific back pressure and flow to work together to produce desirable performance, efficiency, pollution control, and noise control. Altering it in unusual/mismatched ways that do not work together can sometimes actually lead to lowering overall performance or just shifting compromises around.
A real "performance" exhaust is one that is designed (and tested) specifically for the size/type/behavior engine (and its implementation) and includes all the matched components from the exhaust ports on the engine all the way out the tailpipe. This is what I was taught by a race mechanic.
Seems like most people just slap on an aftermarket muffler and perhaps a short section of mid pipe and pretend all the extra/different noise is actually doing much more than extra/different noise.
Or I might just have no idea what I am talking about, that is always a possibility too. I will ask my friend some specific questions about the "missing" at lower RPM. as described, this weekend.
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Now that things have settled down, I suggest that those of you wish to help the OP go read
his previous posts. It seems he hit a deer over a year ago and suffered some bike damage. Then
in November he said he "went aftermarket" on his exhaust and was selling his stock exhaust.
So was his CS One installed in November and he just now is getting a miss? ...or did he
just recently change from one after market exhaust slip on to the CS One. I think we
need a more detailed time line on his exhaust changes in relationship to the first notice
of the miss. I'm not as experienced as many on this board, but I've never had a miss that was
due to exhaust changes or problems. With the exception of an exhaust valve malfunction (once
in an automobile) all were due to either ignition problems, injector problems, or intake vacuum leaks.
(Yeah, I know, I've been real lucky with carburetors. I have no idea why, but I'm not going to complain about it.)
Darknesses, I think we need more info.
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Go read his previous posts. It seems he hit a deer over a year ago and suffered some bike damage. Then [...]
Kewl! Are you a detective in real life???
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Kewl! Are you a detective in real life???
Yeah, Yeah, thanks max', I needed that. :) ;) ...I understand that hitting a deer doesn't have
much to do with a miss (or rather the fact that he didn't miss) but I was just trying to point out that
the bike in question wasn't some pristine C14 that just recently had some exhaust system change and
then suddenly developed a miss. That is to say, it's had some work done, and maybe we just might need
a lot more info to actually be of some assistance to the original poster. Specifically the timeline thing I mentioned
in the earlier post.
Marty...aka: Shamus want-a-be 8)
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This could be caused by more air moving through the new can and the bike running leaner because of it.
Yep.....I agree with this man.
Fretka
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Yep.....I agree with this man.
Fretka
Yup....yup....
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It happens neither during deceleration or acceleration. It happens at low rpms in first and second gear at low speeds like when in traffic or the city. It did not do it with the stock muffler.
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Put the stocker back on, get a PCV, or continue to put up with it. ;)
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Has the throttle sync been done. Could be that the new can emphasizes the problem that you had and didn't realize. I would start by putting the potato launcher back on and see if the problem goes away. If it does then you need a fuel manager like a PC V as noted above. If it's the same then try a throttle body sync.