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General Category >> Rubber Side Down! >> Buzzing sound at high rpm
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Message started by EspenA1982 on 07/01/21 at 15:20:13

Title: Buzzing sound at high rpm
Post by EspenA1982 on 07/01/21 at 15:20:13

hey guys, after cleaning the carburetor and putting it together and on the bike i get a high buzzing sound at high rpm when driving and also standing still! But only when i throttle up. So i hope that some of you now something about this problem? Im putting in a YouTube link (not my bike but the same sound) Thanks in advance :)
https://youtu.be/O3va5xjUT4c

Title: Re: Buzzing sound at high rpm
Post by SavageMan99 on 07/01/21 at 18:24:53

I'm honestly not hearing it. Might suggest securing cables and wires and trying again.
My hearing is not the best. Desert storm and a job with abornally loud alarms.
Also perhaps, try checking your timing chain and valve lash?
Hope I've helped perhaps a little.

Title: Re: Buzzing sound at high rpm
Post by DragBikeMike on 07/01/21 at 20:01:28

The speedometer mounts are notorious for buzzing & chirping. Try placing your hand on the speedo while the bike is making the noise. If it's the mounts, you can generally make the noise go away by pushing down on the speedo. The speedo is held down by these two springs. Some guys pack the spring assembly with silicone seal to eliminate the buzzing noise.

Title: Re: Buzzing sound at high rpm
Post by SCS40 on 07/01/21 at 21:19:16

1A1C136F6D6A6E5E0 wrote:

I heard the OP's metallic noise, but your suggestion may well explain the chirping noise I have. Thanks!

Title: Re: Buzzing sound at high rpm
Post by EspenA1982 on 07/01/21 at 21:33:22

Thanks for the answers guys, the camchain and tensioner was just changed 3 weeks ago at the workshop. And i tried yesterday to hold my hand on the speedo and the sound didint go away :-[ but the strange thing is that this happened last time i had my carburetor out, and i dont remember when or how the sound dissapeared :D i just hoped that it was related to the carb. Well ill keep searching for loose stuff on my bike, and hopefully it goes away this time also ::) thanks again guys.

Title: Re: Buzzing sound at high rpm
Post by Tocsik on 07/04/21 at 07:48:22

It sounds to me like it's not coming from the area where the camera is. Sounds like a buzzing heat shield or muffler baffle, but definitely check the speedo as suggested.