Front Spocket Wear & Noise
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  • 1 Post By beestoys

Thread: Front Spocket Wear & Noise

  1. #1

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    Front Spocket Wear & Noise

    About 3k ago I installed new drive which included an OEM front sprocket and RK 50 XS01 chain. I've recently noticed a new sound which seems to be each chain sideplate contacting the thick shoulder on the front sprocket before the chain rollers bottom in the sprocket. Around the entire circumference of the sprocket "shoulder" are contact marks where the chain sideplates touch. These marks aren't visible in pictures of a new Honda sprocket so I'm assuming they have been caused by the chain contact and something is not right. There's no other improper wear or performance. So is this normal for some reason or do I possibly have a faulty sprocket or an RK chain that's not compatible with the Bird's drive for some reason? Any suggestions or insights would be greatly appreciated.
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  3. #2

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    Re: Front Spocket Wear & Noise

    Still that contract shouldn't be a big issue. That section is part of the cushion drive. I would pull the sprocket though and pack the splines with molly grease. That red tinge your seeing is the result of burnishing between the output shaft and the sprocket splines. If you don't tend to it it's gonna stst5 making horrible racket. (Creak/click noise)
    Gadgey likes this.
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  4. #3

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    Re: Front Spocket Wear & Noise

    No mention of the rear sprocket (wear?)...... or amount of slack in the chain - has it worn in and stretched a bit? If all good, are the rollers lubed - mine gets noisy and viby when it runs dry...... Have you checked the nut on the sprocket just to be sure it's still tight?

    I have an RK chain on JT sprockets but it is no noisier than stock, though it does not feel like the same quality as the oem super chain I replaced at 120,000kms (amazing but true!).

    I know from experience that a worn rear sprocket that 'looks good/ok' can bugger a new chain in less than 15k kms (7000mls)...... always best to fit new sprockets with a new chain.



    Ps just a thought..... is the pitch of the chain the same as the sprocket....... ie no mismatch between say 525 and 530?.


 

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