Chirp on decell.

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Sep 13, 2021 | 08:03 AM

Hey Man

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From: West Central FL

Chirp on decell.

When I'm riding along at 20-30mph and back off the throttle I get a quick chirp from what seems to be coming from the left rear. Would that be from a too tight/too loose or misaligned drive belt?

Sep 13, 2021 | 09:37 AM

FlamedFXR

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From: Hope Mills NC, bye CA!!

Most likely the belt is a little tight.

Sep 13, 2021 | 12:56 PM

WP50

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From: W. Texas

Guess it can be either way But
Chirp is most times loose belt , while a whine noise is the belt to tight

WP

Sep 13, 2021 | 01:17 PM

Hey Man

Thread Starter

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From: West Central FL

Thanks, I'll check the belt.

Sep 13, 2021 | 04:50 PM

carlgrover

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From: Decatur, Alabama

When the belt on mine was too tight, it would let out a very low whirring noise as I decelerated. I like to use the belt gauge to check the tension.

carl

Sep 13, 2021 | 05:09 PM

Mountainkowboy

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From: Anywhere we stop

My friends softie did that when the rear pulley bolts were loose.

Sep 14, 2021 | 05:45 AM

GOGOBECK

Road Warrior

Joined: Apr 2018

Posts: 1,347

Likes: 820

From: Moneta, Virginia

My Road King had a chirp like this, turned out to be a slight exhaust leak between the header and slip-ons.

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Sep 15, 2021 | 07:28 AM

t150vej

HDF Community Team

Joined: Dec 2005

Posts: 5,404

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From: NC USA

When my belt started chirping, mostly under load like going up the mountain, adjustment didn't seem to affect it much since it was pretty much right to start with. Poured water on it out of a bottle and it helped. Then realized I'd not wet washed the bike in many months. Washed the bike on the jack, rolling the belt and sprayed s100 on it and rinsed. Been good ever since.

So dirty pulleys and belt can cause a chirp... in my world anyway.

PS - My belt has a lot of miles on it, (80k) pulleys are basically new (10k)

Sep 15, 2021 | 08:57 AM

#10

98hotrodfatboy

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Joined: Mar 2010

Posts: 21,093

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From: Poolville

Yes worn belts and pulleys will also cause the chirp.. Most likely the rear pulley wear.. Amazing how these kevlar belts can elongate the slots in the rear pulley..