October 1st, 2014, 05:58 AM | #1 |
ninjette.org member
Name: Daren
Location: Milpitas
Join Date: Nov 2009 Motorcycle(s): 2013 Ninja 300 SE Posts: 106
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Slip-on: Exhaust Popping?
As some of you may know, I had recently acquired a 300, used. It came with a Yosh slip-on already mounted. Any how, when rolling off the throttle, I hear an occasional popping ...... something similar and very common when upgrading the exhaust on the new gen 250; which required jetting or shimming, and or removing some emission plumbing.
Anyone know a fix for this? |
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October 1st, 2014, 06:14 AM | #2 |
ninjette.org guru
Name: Artie
Location: Canada
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Flux capacitor
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October 1st, 2014, 06:23 AM | #3 |
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Name: Benji
Location: Wadsworth, IL
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You know.... some companies go through extra trouble to have their vehicles pop on deceleration. Ever hear an F-Type?
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October 1st, 2014, 06:40 AM | #4 |
Inline 4!!!
Name: Danny
Location: MA
Join Date: May 2014 Motorcycle(s): 2008 CBR600rr, 1987 KLR 250 Posts: A lot.
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The popping I believe is because the exhaust makes your bike too lean. Only way to fix it would be a power commander to adjust the fueling map.
On a side note: I like the popping sound, especially when deceleration, my mussari did that... I really need to get a slip on for my 300.
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October 1st, 2014, 06:52 AM | #5 |
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Name: Artie
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I like the popping too, I removed my KLEEN air system on my bike and thought it'd kill it. But now it's crazier than ever, sounds like a banshee.
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October 1st, 2014, 06:52 AM | #6 |
hates stupid people
Name: Mark
Location: Oklahoma City
Join Date: Aug 2011 Motorcycle(s): 2005 ZX6R Posts: 860
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I love the popping. Used to happen on my 250 with the 2 bros slip-on and my mustang pops pretty regularly.
Definitely think it's a bit funny that so many people strive for it and you're trying to get rid of it.
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October 1st, 2014, 06:53 AM | #7 |
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Mine does it all the time (i have a two brothers slip-on). Feather the clutch a bit as you roll off the throttle and it stops. Not sure if there is a true 100% "fix" for it. I don't mind it myself, its not hurting anything i know of.
If it dose not have a power commander i would highly recommend getting one and mapping it for your pipe.
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October 1st, 2014, 07:02 AM | #8 | |
ninjette.org member
Name: mania
Location: Asia
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Quote:
Actually all bikes pop but with the stock exhaust so heavily baffled you do not hear it. Even if you put in a power commander/dynojet etc. EFI controller you will likely still have some popping on deceleration because the lack of baffling will let you hear it. But.....If you want to decrease it to almost unnoticeable just close the throttle all the way when decelerating. Try it you will see how well it works. most dont realize they have it slightly cracked open even when they decelerate & think they are off throttle. Just try it as it is easier done than explained. You will see a big improvement/reduction in popping |
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October 1st, 2014, 07:14 AM | #9 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
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October 1st, 2014, 10:16 AM | #10 |
dirty boy
Name: Joe
Location: Johnstown, PA
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popping can be a symptom of an exhaust leak.
check all exhaust gaskets, joints in the pipe, ect...
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October 1st, 2014, 11:04 AM | #11 |
wat
Name: wat
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when you close the butterfly valve it chokes on air. extra fuel goes past and doesn't burn and hits the hot exhaust pipe where there is a tiny bit of left over oxygen (compared to inside the cylinder where there is none left) and has a very small backfire. normally you don't hear it because of the heavy baffling in the stock exhausts. the extra fuel going through actually helps cool the valves when engine braking.
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October 1st, 2014, 04:03 PM | #12 |
Certifiable nontundrum
Name: Harper
Location: NC Milkshake stand
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My exhaust sounded like 💩 till I changed to a high flow air filter... Probly not your issue, just on topic
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October 1st, 2014, 04:06 PM | #13 |
Certifiable nontundrum
Name: Harper
Location: NC Milkshake stand
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October 1st, 2014, 04:38 PM | #14 |
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Name: Rebecca
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I had popping with the stock exhaust and I still have popping now with an aftermarket full exhaust with PCV. It amuses me so I don't worry about it *shrug*
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October 1st, 2014, 06:39 PM | #15 |
Certifiable nontundrum
Name: Harper
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I don't think I've ever heard a bike that didn't pop in one way or another... Just wait till your bike shoots flames out the pipe
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October 2nd, 2014, 08:11 AM | #16 |
ninjette.org member
Name: Daren
Location: Milpitas
Join Date: Nov 2009 Motorcycle(s): 2013 Ninja 300 SE Posts: 106
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Only if I wanna sh*t myself anytime I wanna crack the throttle above 55+mph ..... lol
Thanks for the responses and insight as to why. FWIW, I have read posts that for a slip-on, an ECU change is not necessary. Any case, seems more common than not. Honestly, it doesn't bother or really concern me. And yes, it does add some additional character from the pipe, aside from the throaty rumble. |
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October 2nd, 2014, 08:26 AM | #17 | |
ninjette.org guru
Name: Artie
Location: Canada
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Quote:
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