chirping on deceleration

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Jul 1, 2015 | 07:58 PM

2007fxstc

Thread Starter

Tourer

Joined: Oct 2014

Posts: 324

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From: Oregon

chirping on deceleration

It's driving me nuts trying to find where it's coming from. Beat clue is that it goes away when I pull in the clutch or hold a steady speed.

Thanks

Jul 1, 2015 | 11:49 PM

OldEnuf2NoBtr

Seasoned HDF Member

Joined: Dec 2009

Posts: 9,156

Likes: 1,905

From: Doghouse... mostly

Have you tried lubricating the throttle grip?

Jul 6, 2015 | 12:16 PM

stic2it

Road Captain

Joined: Feb 2009

Posts: 671

Likes: 5

From: D.C suburbs

Chirping from the engine on deceleration, any visual head gasket leaks?

Jul 6, 2015 | 12:38 PM

2007fxstc

Thread Starter

Tourer

Joined: Oct 2014

Posts: 324

Likes: 21

From: Oregon

I give up.

Gonna have the dealer do an El
Evaluation and open an ESP.

Jul 7, 2015 | 06:18 PM

dfwhockey17

Outstanding HDF Member

Joined: May 2014

Posts: 2,400

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From: Fort Worth, TX

Check your primary chain and your drive belt, both of those 'unload' when not on the throttle and can chirp...

Jul 7, 2015 | 06:27 PM

Stiggy

Seasoned HDF Member

Joined: Nov 2010

Posts: 17,547

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From: Oxford, Nc

Its your drive belt.

Jul 7, 2015 | 08:19 PM

98hotrodfatboy

Seasoned HDF Member

Joined: Mar 2010

Posts: 21,024

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From: Poolville

Funny thing about noises while riding is it can literally come from just about anywhere and resonate throughout.The first thing I would check is motor mounts and next what is the tension on the rear drive belt? also look for metallic residue in the belt from the rear pulley that also could cause it. Pulley will look like it's pitting but will still function.

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Jul 8, 2015 | 09:24 PM

GraemeR

Banned

Joined: Jul 2010

Posts: 853

Likes: 19

From: Melbourne

My Sporty Chirps!

Only for the first mile when the rear belt is cold. Once it warms up the chirp is gone!

Apr 4, 2021 | 08:10 PM

#10

charleskmoore2

Novice

Joined: Jun 2008

Posts: 17

Likes: 6

From: Ohio now, missing WV

Quote:

Originally Posted by 2007fxstc

It's driving me nuts trying to find where it's coming from. Beat clue is that it goes away when I pull in the clutch or hold a steady speed.

Thanks

I had a very similar issue. Mine would chirp as soon as I would let off the throttle just as mentioned. On the lift, it would chirp when the bike was in gear and you rocked the wheel back and forth. During freewheel, it would make a low creaking noise. My mindset is to always start with the easy, cheap and usual issues, here's what I did...
1) Adjusted belt - Nope
2) Cleaned belt and pulley - Nope
3) Cleaned compensator isolators - Nope
4) Checked alignment each time I did the steps above - Nope
5) Inspected pulley with a bright light - Ah ha! Two hairline cracks I could only see at an angle. OBTW, they're hollow.
6) Replaced pulley - Problem solved

Hope this helps someone searching for an answer to what they can't seem to find after doing some of the steps above. Most of the time this issue it stopped by step one. This wasn't the answer I wanted, but it was what I ended with.