Has anyone removed the exhaust flapper yet?
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It won't make your bike any great deal louder.
The purpose of the flapper is for noise limiting at a set rev range in a given territory/location in the world.
It closes when you crack the throttle at a set rpm for noise/emission tests then opens back up.
Quite a few tutorials on sites and various ways to do it.
If you do it let us know what you think.
d
The purpose of the flapper is for noise limiting at a set rev range in a given territory/location in the world.
It closes when you crack the throttle at a set rpm for noise/emission tests then opens back up.
Quite a few tutorials on sites and various ways to do it.
If you do it let us know what you think.
d
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725 Posts
Why the heck would you want it any louder 
It sounds great as-is. Doing so for the street is certainly only going to add to the stereotype that crotch-rocket riders are idoits with obscenely loud exhausts, just like so called ***** Harley riders (south park) with stupid loud exhausts.
It sounds great as-is. Doing so for the street is certainly only going to add to the stereotype that crotch-rocket riders are idoits with obscenely loud exhausts, just like so called ***** Harley riders (south park) with stupid loud exhausts.
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The flapper valve is only to control noise from the exhaust system
Ani difference in noice or feel?
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I wanted to post on this because I was interested by it too. The flapper is closed at idle and lower rpm, so when you remove it it does make the idle a bit louder, also low rpm cruising a little louder. I personally like the louder idle, it sounds "healthier" if you know what I mean. It was fairly simple, although it did take a few minutes of fiddling to disconnect the cable. When you do it you can start the bike and manually close it to be able to hear the difference. No check engine light after my 20 mile test, I believe because the servo is still actuating. I like it
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Oh yeah, I also feel like its a bit smoother through the low rpm range, as in 3k through 5k+.
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I think I will give this a go if it is the reason for the low rev surges .... oh and a bit more noise .... why not lol
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Well it only took a few minutes to do and is a bit fiddly but long pliers is the way to go. No error messages / lights on dash at start-up and will go for a spin later. Only worry is the cable end just hanging there ..... it may catch on something .... will take a look to see if solution.
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well I must say I am sold on this ... better sound and it feels smoother at lower revs. might have to get the duc.ee gizmo as worried about called end dangling around.
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Find the cable / circular connector on the exhaust pipework on the chain side just above silencer .... turn the connector clockwise with hand and at the same time take the cable through the gap with a pair of long nosed pliers. Simples.
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Yeah you just might have to do some wiggling to get it out. I had to.
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