Chirping noise/04 Fatboy exhaust

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Mar 28, 2008 | 08:49 AM

cecil1

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Cruiser

Joined: Nov 2006

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Chirping noise/04 Fatboy exhaust

I bought an 04 Fatboy with 200 miles on it and Python pipes. I noticed right away that there was a chriping sound (like a bird chirping) at idle and 1st gear. Obviously not liking this I bought Bub Jug Huggers, which I had on a previous bike and loved them. After installing them last night, the freaking chrip is still there. There is nothing loose on the bike, it is definately an exhaust or motor issue. Anyone have this experience or know what the heck this noise is?

Mar 28, 2008 | 11:04 AM

tk353

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Joined: Oct 2007

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From: Leander Texas

RE: Chirping noise/04 Fatboy exhaust

Yes i did and still do. It is the way the engine is tuned with the slipons. It is not as loud but still there when i am on different surfaces. The riders around me dont hear it. I think it is caused by the slash cut pipes as others with straight cut have not heard this. If you change the surface you ride on it should change the pitch or make it go away.
I had a buzzing sound one time but located it to the license plate rattle in the bracket.

Mar 28, 2008 | 11:12 AM

liltrk

Road Warrior

Joined: Jan 2006

Posts: 1,823

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From: London, Canada

RE: Chirping noise/04 Fatboy exhaust

Exhaust chirping can be caused by a burned exhaust valve, but with only 200 miles I doubt that. On my bagger it was the rubber bushing that holds the muffler. WD40 to the rescue.

Mar 28, 2008 | 01:40 PM

tk353

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From: Leander Texas

RE: Chirping noise/04 Fatboy exhaust

I dont have rubber mounted exhaust. maybe the engine mounts when the engine smooths out at cruse.

Mar 28, 2008 | 03:30 PM

rcc

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Joined: Mar 2008

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From: Oregon City, Oregon

RE: Chirping noise/04 Fatboy exhaust

Mar 28, 2008 | 03:36 PM

rcc

Cruiser

Joined: Mar 2008

Posts: 184

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From: Oregon City, Oregon

RE: Chirping noise/04 Fatboy exhaust

My 05 Heritage did the same thing after installing Rush slipon's.
Chirps at idle and decel. Sounds like it is coming out the muffler for the front cylinder or leaking at the clamp for the rear muffler.
Bought new gaskets and clamps and am going to try them.

RC