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Offline vvlatko

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Grinding noise under acceleration?
« on: October 31, 2018, 07:54:44 PM »
Hi all,
I just changed the chain and was hoping for noise free riding, when a new noise came up....almost like grinding when under acceleration, but only when going slow, city riding. I can't reproduce it on the center stand, even when I put the bike in gear, and it doesn't make the noise with the clutch pulled in, so it's only under load/acceleration.
I never heard it before and can't explain why it would appear now.
I was trying to source it while riding, it feels more like it's coming from the clutch side not from the chain.
The new chain was adjusted according to the specs at 35mm slack.

Any idea what it could be, as to where should I start troubleshooting?

Offline JEF.FREE.Ryder

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Re: Grinding noise under acceleration?
« Reply #1 on: November 01, 2018, 02:36:14 AM »
New Chain.   Did you replace the sprockets at the same time.

I would start with the obvious stuff like alignment   - lube the exterior of the chain very well
Make sure the chain does not have tight spots .

IF no noise occurred before the chain replacement and started right away after  Its most likely not something else
Like a bearings  or brake pads. 

Offline TYKE

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Re: Grinding noise under acceleration?
« Reply #2 on: November 01, 2018, 07:58:08 AM »
*Originally Posted by JEF.FREE.Ryder [+]
New Chain.   Did you replace the sprockets at the same time.

I would start with the obvious stuff like alignment   - lube the exterior of the chain very well
Make sure the chain does not have tight spots .

IF no noise occurred before the chain replacement and started right away after  Its most likely not something else
Like a bearings  or brake pads.

I agree 100%   chain alignment is important... do not rely on the markers on the swing arm, instead invest in a good chain alignment device  :028:   
Be wary of an old man in a world where men die young

Roger (Rog)

Offline vvlatko

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Re: Grinding noise under acceleration?
« Reply #3 on: November 02, 2018, 05:07:53 AM »
I have put a new chain on old sprockets before and never had issue, so I did the same now.
Checked with alignment tool and adjusted to specs. Only thing I didn't do is lube it cause I thought the factory grease would be enough for the first ride home at least.....I hope it's nothing more serious but will keep you posted

Offline TallyRex

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Re: Grinding noise under acceleration?
« Reply #4 on: November 02, 2018, 10:23:19 AM »
Did you clean off the old lube on the old sprocket?  Every pro recommends new sprockets with a new chain.

Offline TYKE

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Re: Grinding noise under acceleration?
« Reply #5 on: November 02, 2018, 11:21:08 AM »
Tallyrex makes a good point

The front sprocket in particular can become very choked with grim/old chain lubricant etc.,

You don't say what mileage you have covered although I'm guessing 30,000 plus otherwise a new chain probably wouldn't be required, also you almost certainly removed the front sprocket cover in order to replace the chain or linked the new and old chains together and 'pulled them through'    :notsure: 

Is your bike a Mk1 or Mk2 Versys 1000   :question:

Is the chain guide on the swingarm still located and functional :question:   
Be wary of an old man in a world where men die young

Roger (Rog)

Offline vvlatko

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Re: Grinding noise under acceleration?
« Reply #6 on: November 02, 2018, 11:53:16 AM »
I know new sprockets are recommended, but I got the chain cheap (D.I.D) so not too concerned if it wears prematurely.
I have a mk1, 30k km on it, mostly highways and not too aggressive overall. Consulted with the local mechanic who checked the sprockets and advised they are actually in pretty good shape.
I took the front sprocket cover off and cleaned the whole area.
Chain guide is still there and looks functional

Offline TYKE

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Re: Grinding noise under acceleration?
« Reply #7 on: November 02, 2018, 01:14:27 PM »
*Originally Posted by vvlatko [+]
I know new sprockets are recommended, but I got the chain cheap (D.I.D) so not too concerned if it wears prematurely.
I have a mk1, 30k km on it, mostly highways and not too aggressive overall. Consulted with the local mechanic who checked the sprockets and advised they are actually in pretty good shape.
I took the front sprocket cover off and cleaned the whole area.
Chain guide is still there and looks functional

Ok and thanks for the update.... does the chain have any tight spots within any link  :question: 
Be wary of an old man in a world where men die young

Roger (Rog)

Offline vvlatko

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Re: Grinding noise under acceleration?
« Reply #8 on: November 05, 2018, 06:21:47 PM »
I re-adjusted the chain and lubed it nicely and next day went for a 200+- km ride. There was the same sound at the beginning, almost no sound near the end. I don't know if I got used to it or just the new chain needed to bed in the old sprockets, but it sounds better now. Hopefully that was the issue.

 



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