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May 25th, 2020, 10:11 PM   #1
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FE 570 - akrap exhaust

Hello guys,

I have posted a new thread in New Users forum but I guess it still has not been accepted.


I bought a beautiful FE570 2009, with akrap on it. Unfortunately, this guy is so loud that I decided to check the muffler fiber in it. Have a look. Does it look like it needs to be replaced?
https://zapodaj.net/a5aad1038b77c.jpg.html
https://zapodaj.net/cda4095964085.jpg.html
https://zapodaj.net/7f92808a22155.jpg.html

I have replaced it with the regular Husaberg's exhaust. After couple of minutes Husaberg started to shoot after revving up. Does it mean that the fuel mixture is has too much fuel in it? Or the ignition map has been adjusted to akrap?

Also I felt like it was choking at low engine speed.

The thing is I'd like to have akrap but it has to be quiter ... What would you recommend? Will DB killer lower the power significantly?

Thanks for any suggestions.
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May 26th, 2020, 10:48 AM   #2
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the exhaust wadding tends to congregate at the end so I'd check the wadding is all the way through.

why don't you check the jetting? the MJ can be 170 and I bet it is 180+

check the needle clip position and the code on the side.
check the pilot (slow) jet?

also clean them while you are there. the PJ and the starter jet block easily.

Taffy
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May 28th, 2020, 10:13 AM   #3
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Hey Taffy,

thanks for your feedback.

I will open the exhaust also on the other side and check it.

How do I check jetting? It's 2009 and has fuel injector. Or ?

Thanks!
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May 28th, 2020, 11:03 AM   #4
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sorry, I didn't note that it was a 2009. my mistake.

Taffy
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May 29th, 2020, 02:43 AM   #5
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Originally Posted by Szafa View Post
Hello guys,

I have posted a new thread in New Users forum but I guess it still has not been accepted.


I bought a beautiful FE570 2009, with akrap on it. Unfortunately, this guy is so loud that I decided to check the muffler fiber in it. Have a look. Does it look like it needs to be replaced?
https://zapodaj.net/a5aad1038b77c.jpg.html
https://zapodaj.net/cda4095964085.jpg.html
https://zapodaj.net/7f92808a22155.jpg.html

I have replaced it with the regular Husaberg's exhaust. After couple of minutes Husaberg started to shoot after revving up. Does it mean that the fuel mixture is has too much fuel in it? Or the ignition map has been adjusted to akrap?

Also I felt like it was choking at low engine speed.

The thing is I'd like to have akrap but it has to be quiter ... What would you recommend? Will DB killer lower the power significantly?

Thanks for any suggestions.
Check with the previous owner to see if they had the ECU remapped. Have a look at the ECU under the seat to see if it has been written on.

You can get inserts for the Akra.
Alan is offline  
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