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noixd
Derestricted Danger



Joined: 17 Aug 2020
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PostPosted: 19:39 - 03 Nov 2020    Post subject: engine noise Reply with quote
Any ideas on this engine beep noise? Bike is Honda CM125

https://www.youtube.com/watch?v=jHSEpQ41i9M&feature=youtu.be

Need anymore info let me know and i'll update the post.

Thanks so much

Last edited by noixd on 19:55 - 03 Nov 2020; edited 1 time in total
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Easy-X
Super Spammer



Joined: 08 Mar 2019
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PostPosted: 19:43 - 03 Nov 2020    Post subject: Reply with quote
Rubber chicken in the airbox?
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RhynoCZ
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Joined: 09 Mar 2012
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PostPosted: 19:48 - 03 Nov 2020    Post subject: Reply with quote
Without telling us what motorcycle it is, I'm gonna say the noise you are hearing is related to the starter clutch.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
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noixd
Derestricted Danger



Joined: 17 Aug 2020
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PostPosted: 20:01 - 03 Nov 2020    Post subject: Reply with quote
Easy-X wrote:
Rubber chicken in the airbox?


Haha maybe
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Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
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PostPosted: 21:27 - 03 Nov 2020    Post subject: Reply with quote
I'm going to go with starter clutch as well. It's full of rubber chickens.
https://youtu.be/pWZKuuFli2o
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Riejufixing
World Chat Champion



Joined: 24 Jun 2018
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PostPosted: 23:12 - 03 Nov 2020    Post subject: Re: engine noise Reply with quote
noixd wrote:
Any ideas on this engine beep noise? Bike is Honda CM125

https://www.youtube.com/watch?v=jHSEpQ41i9M&feature=youtu.be

Need anymore info let me know and i'll update the post.

Thanks so much

It's something slipping under load, after the engine fires. Whether it's because the engine's driving it or because it's driving the engine is unclear.

Possibly with help (someone to press the starter button), use an engine stethescope (e.g. a long screwdriver, the handle pressed onto that flappy bit in front of your ear's hole, so as to close the hole and the other end pressed to various places on the engine, i.e. as others have advised, and track down where the noise comes from. It's a useful technique.
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steve the grease
Crazy Courier



Joined: 26 Jan 2018
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PostPosted: 17:40 - 04 Nov 2020    Post subject: Reply with quote
Could be an air leak, could be the starter clutch.
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I've been riding, and fixing , bikes for 50 years, in that time the more I learn, the less I am absolutely sure of.....
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Robby
Dirty Old Man



Joined: 16 May 2002
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PostPosted: 17:55 - 04 Nov 2020    Post subject: Reply with quote
Starter, but it also sounds like it's turning over a bit slowly. Charge the battery overnight and see if the noise goes away.
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stevo123
Nitrous Nuisance



Joined: 10 Aug 2004
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PostPosted: 20:50 - 04 Nov 2020    Post subject: Reply with quote
+1 for 1 way bearing on starter/starter clutch.
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WD Forte
World Chat Champion



Joined: 17 Jun 2010
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PostPosted: 23:16 - 04 Nov 2020    Post subject: Reply with quote
+2 on the starter cluck

see what i did there?
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The last post was made 5 years, 88 days ago. Instead of replying here, would creating a new thread be more useful?
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