Whining Noise on Deceleration

Jaife86 · August 9th, 2013, 04:55 PM

After taking a little slack out of my chain yesterday I'm noticing a very distinct whining sound under deceleration. Sounds like a bad bearing sort of. Could I have gotten to chain too tight, or the wheel out of alignment? I used a straight edge on the tire to measure the distance from each side to the lowering links. The two sides were within 2 mm of each other. The Chain slack seems within spec according to the owners manual.

Anything else I should check besides wheel alignment and chain tighness?

jkv45 · August 9th, 2013, 07:52 PM

Sounds like the chain is too tight.

Make sure you find the tightest spot before setting the tension. A little too loose is better than a little too tight.

Here's a good video from Canyonchasers on the correct way to adjust the chain - http://www.canyonchasers.com/video/chain.php

Motofool · August 10th, 2013, 08:55 AM

Quote:

Originally Posted by Jaife86

.........Anything else I should check besides wheel alignment and chain tighness?

It should not be a bad bearing if only happens during deceleration.

I would put some tension on the lower half of the chain by rotating the wheel (engine off- some clutch in) while in first gear and check if either the tensioned bottom or the hanging top of the chain rubs against some hard part (especially is the rear of the bike has been risen).

As mentioned above, it is important to find the proper slack for the tightest portion of the rotation of the wheel.

lgk · August 10th, 2013, 09:07 AM

Im thinking its the chain since it happened right after you tensioned it.

If the chain is not lubed well it'll whine.

Jaife86 · August 10th, 2013, 05:05 PM

I took 1/2 a turn out of the adjusters, quick test ride down the rode and it seems fine. I think the noise might have been me putting it in first at a relatively high speed, I think that gear might be straight cut or it just noise. Will definitely clean/lube the chain soon as well though.

lgk · August 10th, 2013, 06:36 PM

Wouldn't hurt to lube/adjust the clutch cable as well.

jkv45 · August 11th, 2013, 07:13 AM

Quote:

Originally Posted by Jaife86

I took 1/2 a turn out of the adjusters, quick test ride down the rode and it seems fine. I think the noise might have been me putting it in first at a relatively high speed, I think that gear might be straight cut or it just noise. Will definitely clean/lube the chain soon as well though.

It's a better idea not to downshift into first until you are completely stopped or barely moving.

August 9th, 2013, 04:55 PM	#1
Jaife86 ninjette.org member Name: Jeff Location: Boise, ID Join Date: Jul 2013 Motorcycle(s): 2009 Blue Ninja 250 Posts: 21	Whining Noise on Deceleration After taking a little slack out of my chain yesterday I'm noticing a very distinct whining sound under deceleration. Sounds like a bad bearing sort of. Could I have gotten to chain too tight, or the wheel out of alignment? I used a straight edge on the tire to measure the distance from each side to the lowering links. The two sides were within 2 mm of each other. The Chain slack seems within spec according to the owners manual. Anything else I should check besides wheel alignment and chain tighness?

August 10th, 2013, 09:07 AM	#4
lgk ninjette.org certified postwhore Name: Jason Location: Norfolk, VA Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.	Im thinking its the chain since it happened right after you tensioned it. If the chain is not lubed well it'll whine. __________________________________________________ Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700

August 10th, 2013, 06:36 PM	#6
lgk ninjette.org certified postwhore Name: Jason Location: Norfolk, VA Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.	Wouldn't hurt to lube/adjust the clutch cable as well. __________________________________________________ Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700

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August 9th, 2013, 07:52 PM	#2
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	Sounds like the chain is too tight. Make sure you find the tightest spot before setting the tension. A little too loose is better than a little too tight. Here's a good video from Canyonchasers on the correct way to adjust the chain - http://www.canyonchasers.com/video/chain.php

August 10th, 2013, 05:05 PM	#5
Jaife86 ninjette.org member Name: Jeff Location: Boise, ID Join Date: Jul 2013 Motorcycle(s): 2009 Blue Ninja 250 Posts: 21	I took 1/2 a turn out of the adjusters, quick test ride down the rode and it seems fine. I think the noise might have been me putting it in first at a relatively high speed, I think that gear might be straight cut or it just noise. Will definitely clean/lube the chain soon as well though.