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Author Topic: Open exhaust  (Read 275 times)

Bobber

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Open exhaust
« on: April 19, 2018, 05:11:29 PM »

Im thinking of making a new exhaust on my bobber project.. (2009 gv125)

I have taken the mufflers off and rejetted it, and got it to run propperly.

Its alot quicker than it was before.

But is there any problems running it with a open axhaust system?

« Last Edit: April 19, 2018, 05:39:35 PM by Bobber »
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emilhotti

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Re: Open exhaust
« Reply #1 on: April 19, 2018, 05:18:53 PM »

Not as long as you've adjusted the carbs accordingly. Fitting a better (more free flowing) air filter is often adviced. I'm no mechanic though, but I have some experience regarding stuff like this.
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Bobber

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Re: Open exhaust
« Reply #2 on: April 19, 2018, 05:38:38 PM »

 There wil be a one of those conical air filters on it when i figure out how fit it.. Not sure where i want it to be yet..
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Bobber

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Re: Open exhaust
« Reply #3 on: April 19, 2018, 10:51:43 PM »

The whole filter box realy dosent fit my build, not sure what to do with this yet... 
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Cloud

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Re: Open exhaust
« Reply #4 on: April 20, 2018, 03:00:55 AM »


RAM AIR
like you JUST DON'T CARE
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Bobber

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Re: Open exhaust
« Reply #5 on: April 20, 2018, 02:06:12 PM »

Filters right on the carb?
There are some hoses connected to the filter box im not sure what is for.. need to have a look at it this weekend i think.
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Cloud

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Re: Open exhaust
« Reply #6 on: April 20, 2018, 02:31:44 PM »


Reduction in air flow velocity via a larger intake aperture creating a higher air density.
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Bobber

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Re: Open exhaust
« Reply #7 on: April 21, 2018, 11:02:58 AM »

Got alittle off track here, over to the exhaust again.

On the original system, the pipe from the rear cylinder has a little pipe that runs in to the front cylinder pipe.

Can anyone tell me whats the point of this?
Id like to make two seperate pipes..
« Last Edit: April 21, 2018, 11:37:05 AM by Bobber »
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umop-ǝpisdn

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Re: Open exhaust
« Reply #8 on: April 21, 2018, 11:01:16 PM »

It's to balance exhaust pressure. It's called a balance pipe. Benefit unknown.
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