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Noise From Chain


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#1 TKH

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Posted 20 November 2021 - 01:54 pm

I've just changed the chain and sprockets on my 9'er. I've fitted a DID chain,  AFAM rear sprocket and ognibene front sprocket with one less tooth.

 

That all went ok as far as I know but I get a whine, which increases with speed, that appears to come from the chain and sounds like the chain is too tight. I initially set the slack to 53mm but now have set it at 60mm.

 

Anyone any idea abut the whine?


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#2 fixitsan

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Posted 20 November 2021 - 05:43 pm

Could it be one of the rear bearings, such as the sprocket carrier ?

Did you check them when you had the carrier off ?


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#3 dandywarhol

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Posted 20 November 2021 - 05:57 pm

Did the original front have the rubber noise damping cushions? 


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#4 wicklamulla

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Posted 22 November 2021 - 06:41 am

smaller front sprocket may accelerate wear on the nylon chain guides affixed to the forward section of the swingarm. Cud this also be the cause of the whine?


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#5 TKH

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Posted 22 November 2021 - 01:22 pm

Could it be one of the rear bearings, such as the sprocket carrier ?
Did you check them when you had the carrier off ?


No I didn't. Eveything was fine and "quiet" before I replaced the chain and sprockets so didn't think to check anything. I'll have a look, thanks.

Did the original front have the rubber noise damping cushions?


Yes and that's partly why I decided to replace with the ognibene with the cushions. Actually it was the original part. The bike's only done 33k.

smaller front sprocket may accelerate wear on the nylon chain guides affixed to the forward section of the swingarm. Cud this also be the cause of the whine?


I hadn't thought of that. Thanks I'll have a look.
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#6 chrisr

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Posted 27 November 2021 - 08:35 pm

Did you sort it?
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