OzSTOC

General Category => General Discussion => Topic started by: curious1 on October 18, 2021, 03:00:02 PM

Title: ST making buzzing noise on right side at high speed and rpm
Post by: curious1 on October 18, 2021, 03:00:02 PM: I just recently re-registered my ST and on my 1st ride I went past 5k rpm and 90kmh and the bike started a noise I never heard before. I removed my ear plugs to get a better understanding what goes on but all what I can conclude is a loud buzzing noise on the right side which stops when I drop the speed below 90k. If I keep speed above this the noise is continues and no change of pitch with speed/rpm variation, any suggestion will be much appreciated because at the moment I am lost for any idea for further investigation. At 80k the bike runs smooth and no extra noise at all.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Brock on October 18, 2021, 03:16:19 PM: Could be the RH exhaust shield with a crack at the front bolt hole..Not uncommon.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: West Aussie Glen on October 18, 2021, 07:51:38 PM: Is it an 11 or 13?
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Shiney on October 18, 2021, 08:33:10 PM: Could it be something in the pie warmer or a crack in the Tupperware vibrating?
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Dragonstaff on October 19, 2021, 09:14:12 AM: Quote from: Shiney on October 18, 2021, 08:33:10 PM
Could it be something in the pie warmer or a crack in the Tupperware vibrating?

Educate the new guy please.

Pie warmer?
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Williamson on October 19, 2021, 09:24:48 AM: Quote from: West Aussie Glen on October 18, 2021, 07:51:38 PM
Is it an 11 or 13?

It’s in his signature.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Williamson on October 19, 2021, 09:26:30 AM: Quote from: Dragonstaff on October 19, 2021, 09:14:12 AM
Quote from: Shiney on October 18, 2021, 08:33:10 PM
Could it be something in the pie warmer or a crack in the Tupperware vibrating?

Educate the new guy please.

Pie warmer?

Glove boxes, lockable LHS, non-lockable RHS.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: StinkyPete on October 19, 2021, 12:45:56 PM: Quote from: Dragonstaff on October 19, 2021, 09:14:12 AM

Educate the new guy please.

Pie warmer?

The temps in the glove boxes get very high (hence Pie Warmers), to the point where I was reluctant to store anything like wallet, camera, credit cards etc. Good for tools, cleaning cloths etc
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Dragonstaff on October 19, 2021, 12:48:33 PM: I see. I haven't noticed that yet, because I keep gloves in one and a hat in the other.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: curious1 on October 19, 2021, 01:44:03 PM: Thanks for your replies but a cracked exhaust would make a different noise and specially it would change with power setting which it does not do. I will try to record the noise and may that will help.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Dragonstaff on October 19, 2021, 01:57:16 PM: Quote from: curious1 on October 19, 2021, 01:44:03 PM
Thanks for your replies but a cracked exhaust would make a different noise and specially it would change with power setting which it does not do. I will try to record the noise and may that will help.

A cracked exhaust would behave like this, you are quite correct, but a cracked and loose heatshield might be a different story, and Brock did suggest that the heatshield crack was a common fault.
Title: Re: ST making buzzing noise on right side at high speed and rpm
Post by: Brock on October 19, 2021, 02:50:04 PM: I have never heard of a cracked exhaust, but currently have a cracked heat shield. Its a bit of work to get it off for 10 seconds with the Mig..