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Author Topic: Hearing a sound  (Read 1163 times)

Vietkieutie

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Hearing a sound
« on: August 05, 2018, 08:18:49 PM »
It sounds like it’s linked to my revving, as I rev up, the whirring gets louder, as I ease off, it ceases. How do I check what the source of this is, so I can stop it?


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CROSSBOLT

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Re: Hearing a sound
« Reply #1 on: August 05, 2018, 11:46:43 PM »
Post a recording so we can listen.
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
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Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

EvilTessmacher

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Re: Hearing a sound
« Reply #2 on: August 06, 2018, 02:19:57 AM »
Say, Karl... That brings up a really good question.

How would one go about making a recording of a specific sound? What setup should one use?

I know that's two questions, but....

Seriously, I'd really like to know how one would go about even attempting to make a recording.
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Two things to consider...
1) The early bird might get the worm, but the second mouse always gets the cheese.
2) Eagles may soar, but weasels never get sucked into jet engines.

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CROSSBOLT

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Re: Hearing a sound
« Reply #3 on: August 06, 2018, 10:48:28 AM »
Most guys just stick their phone near the works. Seems to work pretty well. We have figured out valve noise, locked starter clutches and stuff that way.
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

EvilTessmacher

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Re: Hearing a sound
« Reply #4 on: August 07, 2018, 12:46:41 AM »
Oh...
I was thinking some elaborate microphone/recorder setup.


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Two things to consider...
1) The early bird might get the worm, but the second mouse always gets the cheese.
2) Eagles may soar, but weasels never get sucked into jet engines.

---
2018 Kymco 400i - "Diana"
2013 Honda PCX - "Natasha"
1982 Honda PA-50

Vietkieutie

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Re: Hearing a sound
« Reply #5 on: August 07, 2018, 12:48:25 AM »
Hey everyone, so the sound went away after a 10 minute ride, which leads me to believe it was a street rock. But this is sound input to diagnose any future sounds that may occur.


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CROSSBOLT

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Re: Hearing a sound
« Reply #6 on: August 07, 2018, 02:39:28 AM »
Road speed related, engine speed related, wheel speed, etc. Have to separate them carefully to get at the cause. Your case was to change surface conditions and the sound changed or went away. All part of the wacky world of troubleshooting!
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

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