Yoshimura Exhaust 2016 Ninja

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Yoshimura Exhaust 2016 Ninja

This is a discussion on Yoshimura Exhaust 2016 Ninja within the General Ninja 650R forums, part of the Kawasaki Ninja 650R category; Hi all, I'm thinking of replacing the factory exhaust with a Yoshimura RS4 exhaust. Installation seems to be quitte easy but I'm worried about some ...

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Thread: Yoshimura Exhaust 2016 Ninja

  1. #1
    Newbie Rbarbosq's Avatar
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    Yoshimura Exhaust 2016 Ninja

    Hi all,

    I'm thinking of replacing the factory exhaust with a Yoshimura RS4 exhaust. Installation seems to be quitte easy but I'm worried about some modifications that I have to do with a power commander to change the factory settings. Can anyone explain me what this is all about ? Do I really need to use the Power Commander in order to install the exhaust ?

    Thx

  2. #2
    Up-And Comer Sarge1992's Avatar
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    I have the Yoshi RS4 on my 14 650r, only mod I did was the PAIR block off. You don't need the power commander, but I hear it helps more with the exhaust popping on deceleration.

  3. #3
    Newbie Rbarbosq's Avatar
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    Thx Sarge, since i'm a newbie, can you please explain what does PAIR block off means ?

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    Up-And Comer Sarge1992's Avatar
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    It's where you remove the hose to the PAIR valve and use 5/8" rubber caps to seal it up. The PAIR valve is just a secondary air injection system installed by the government for emissions. Considering you want to put on a Yoshi exhaust which will remove the catalytic converter on your bike from factory, you're already tossing emissions out the window. The PAIR valve mod will reduce the amount of popping in the exhaust under heavy deceleration caused by unburnt fuel vapors. Here's a link to a good writeup I found with pictures on how to. It says it's for a 2012, but it will be the same for your 2016.

    https://drive.google.com/file/d/0B9F...hNOWN6UW8/view
    feistyfoo likes this.

  6. #5
    Newbie Rbarbosq's Avatar
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    Thx again

  7. #6
    Newbie krazymanwalker's Avatar
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    I am a bit curious I have an 09 650R Ninja and took the factory exhaust off about a month or so ago, and just now started to have some bogging issues while in gear. I was wondering if Sarge may have an answer as to if it has something to do with the fuel to air ratio finally being out of place from no back pressure or what you may think. It just started this passed weekend and I've been riding it without the exhaust for a while with no problems other than what you were saying to Rbarbosq with the popping coming from it every once in a while. It runs fine while in idle and I have no issues but once I put it in gear it will jump in RPMs and go from taking off really slow, (bogged down) to jumping up really high to where I get thrown a little bit from not expecting it. Do you by chance have any suggestions on fixing it at the house rather than taking it to a shop for getting some mapping changed by chance?

  8. #7
    Supreme Being HilbillyKat's Avatar
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    Quote Originally Posted by krazymanwalker View Post
    I am a bit curious I have an 09 650R Ninja and took the factory exhaust off about a month or so ago, and just now started to have some bogging issues while in gear. I was wondering if Sarge may have an answer as to if it has something to do with the fuel to air ratio finally being out of place from no back pressure or what you may think. It just started this passed weekend and I've been riding it without the exhaust for a while with no problems other than what you were saying to Rbarbosq with the popping coming from it every once in a while. It runs fine while in idle and I have no issues but once I put it in gear it will jump in RPMs and go from taking off really slow, (bogged down) to jumping up really high to where I get thrown a little bit from not expecting it. Do you by chance have any suggestions on fixing it at the house rather than taking it to a shop for getting some mapping changed by chance?
    Are you sure what you are experiencing isn't an issue with the clutch? Without riding the bike or seeing it in person..that's kind of what it sounds like it might be. Especially since it was running fine before. Are you sure the clutch cable is properly adjusted..with the correct amount of free play?

  9. #8
    Up-And Comer Sarge1992's Avatar
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    Yea I don't think back pressure is an issue in your case because I don't think the 2011 and older had catalytic converters to begin with, I think those started in 2012.

  10. #9
    Newbie krazymanwalker's Avatar
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    I don't have any issues with the clutch from what it feels like to me. I can put it in gear and just keep the clutch disengaged and it will start dropping in it's idle slowly, then picks back up again. I was going to put the muffler back on and see what happens, but I haven't had the chance to do so yet. I can try to adjust the clutch cable some and then give it a shot and see what happens. Anything is worth a try before having to take it to a shop or taking a lot of things apart on my end I believe. I was going to see about getting a diagnostic, which will end up being $98 if it comes down to it. I will go through some of those ideas and see if anything changes, and then I will get back. Sorry I didn't write back sooner, this is the first time I've been on a forum and didn't know I wouldn't get any kind of notification from someone writing on here.

  11. #10
    Rising Star SoCaliTrojan's Avatar
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    Are you sure you don't have any exhaust leaks? Use a candle and bring it around your exhaust joints. Observe the candle's smoke.

    If there's no leak, maybe your bike needs a power commander. Not all engines are built the same, and maybe it took your engine time to adjust? I know my bike would bog down going up hills, so I bought a power commander. The power commander started going wonky on me after a year, so I took it off and I have yet to notice the bogging return.

  12. #11
    Site Elder tp555's Avatar
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    Quote Originally Posted by Sarge1992 View Post
    Yea I don't think back pressure is an issue in your case because I don't think the 2011 and older had catalytic converters to begin with, I think those started in 2012.
    The first gen bikes had cats. Very clogging type of cats not the flow thru type.

  13. #12
    Newbie krazymanwalker's Avatar
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    Well just for trying to put my muffler back on made no difference anyways. I will have to see about leaks, but I believe it may be while its firing some now, so I am just going to take the tank off, and the air box and get down to my spark plugs and hope for the best on that. I appreciate everyone's help on this subject, cause right now I'm missing some good summer time to ride. I'll look into the commander if the spark plugs and the firing isn't apart of the issue. I just figure I'll see about that so I can at least rule that part out, just to be on the safe side of things.

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    Supreme Being HilbillyKat's Avatar
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    Have you checked the air cleaner? It can sometimes causea bog if it gets dirty enough. Also...how long since the valves were adjusted?
    Last edited by HilbillyKat; 05-30-17 at 03:58 PM.

  15. #14
    Newbie krazymanwalker's Avatar
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    To say the truth it probably was never done. I'm not sure of the air cleaner, if it has ever been cleaned. I bought the motorcycle about a year and a half ago from my sister's boyfriend which kept it in the garage and wanted to get a cruiser rather than sticking with a sports bike. He sold it for a reasonable price so I bought it from him. He said the only thing I needed to change at the moment was to change the oil, which I did when I bought it and it ran great everyday until a couple of months from pulling the muffler off. I just figure everything else is working fine, might as well take it apart a little bit to get down to the electrical and the engine to double check to see how things look there, before I may have to take it to someone to see what it may be if I can't think of anything else to look at or fix, but I will take a look at that as well once I get down to doing it.
    HilbillyKat likes this.

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