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Rev 3 270 clutch whirring?


Crazymac680
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I've just done a full rebuild and about 8 hours riding. I'm pretty sure it's been making the sound since the rebuild.

When the clutch lever is pulled the engine sounds normal. As I release and the bike starts to pull I hear a whirring. It sounds a bit like an electric motor. Which increases in pitch according to the revs. I'm using putoline gear oil. 

Or could it be the clutch release bearing? Oil type? 

Thanks for any advice

IMG_20191031_132557273.jpg

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My 270 used to make a whirring noise too - I think it's normal and my clutch was all fine. Mine only did it when you selected a gear - quiet in neutral. It became a bit quieter as things warmed up. A few other Rev3s in the club did a similar thing. If that's the case with yours, and it's all working nicely, I think you'll be good to carry on.

 

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