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Author: Subject: bike knocking
joolsmi16

posted on 15/10/09 at 08:36 PM Reply With Quote
bike knocking

Hi all, just bought I thunderace this week and after I removed the fuel tank to start a small service I started the bike up to warm the oil up and noticed a knocking noise.

As far as I can tell using a screw driver held to my ear its coming from the casing behind the alternator? I know there is a chain driven shaft in the casing, my question is should I be concerned about the knocking and would anyone know the cause and fix?? Bikes on 36K

Jools

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pewe

posted on 15/10/09 at 08:49 PM Reply With Quote
Presumably the knock wasn't there when you bought it?

Don't know that particular bike but are you sure you used the correct grade of oil and the right quantity?

For it to be deep inside the casing my feeling is that it could be mains or big -ends.

My inclination would be to get your money back if you haven't done many miles since you bought it unless it was a knock-down price.
HTH.
Cheers, Pewe

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joolsmi16

posted on 15/10/09 at 08:55 PM Reply With Quote
bike

bike

I didn't notice the knock until I removed the fuel tank to do a service.

The knocking is at the top of the engine in the casing of the alternator shaft.

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matt_gsxr

posted on 15/10/09 at 11:05 PM Reply With Quote
does the noise go away when you turn the headlight on? It might sound like a stupid question but some Suzukis have alternator rattles that go away when the alternator is loaded. I know it isn't a suzuki, but...

Matt

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02GF74

posted on 16/10/09 at 12:01 AM Reply With Quote
ratmonste r trying to get out?






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MakeEverything

posted on 16/10/09 at 07:46 AM Reply With Quote
Fantastic, i would be wetting myself with laughter!!!





Kindest Regards,
Richard.

...You can make it foolProof, but youll never make it Idiot Proof!...

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MakeEverything

posted on 16/10/09 at 07:46 AM Reply With Quote
Timing Chain? - I dont know much about Yam engines though.





Kindest Regards,
Richard.

...You can make it foolProof, but youll never make it Idiot Proof!...

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AndyGT

posted on 16/10/09 at 08:13 AM Reply With Quote
knocking go off when you raise the revs by 200 or 300 rpm?

Is it not just timing chain on a slow tick-over?

[Edited on 16/10/09 by AndyGT]





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