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Is this whirring sound normal?

HarryJenkins

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Hii..

I went and checked out an '06 Shadow Aero today. It all looked fairly decent for the price, but one thing gave me some concern. There's a whirring sound with the engine. I've only got my old CL350 as a base of comparison, and I'm not sure if the sound is normal for these kinds of bikes. I found a you tube video of another shadow that almost exactly demonstrates the sound it makes. Like a high end whirring that increases with throttle. Is this something to be worried about, or should I call the seller back and go grab the bike?

Please help..!

I didn't find the right solution from the Internet.

References:-
https://goo.gl/6x3JTD
case study examples

Thanks!
 
That noise is normal, likely has at least a couple of straight cut gears in there which make the noise, a Harley copy thing to imitate the sound all the way. Harleys use straight cut cam gears to make that noise. The Honda uses them in the primary drive.
 
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