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General Category >> Rubber Side Down! >> Morning acceleration squeal.
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Message started by misterdub on 03/09/09 at 06:44:26

Title: Morning acceleration squeal.
Post by misterdub on 03/09/09 at 06:44:26

Well, I've been riding consistently again over the last few days now that the weather is warming up but I'm noticing that I have a squeal on acceleration during the first couple of minutes of the ride.

It's only during acceleration. If I rev the engine while the clutch in it's quiet. If I pull the clutch in or let off the throttle while I'm rolling it's quiet. It sounds like a belt squeal (or at least, what I've heard from cars with a belt squeal). A physical inspection of the belt looked fine though. The mornings are still quite chilly, is it just the belt warming up? Should I replace the belt?

The sound does go away within two minutes. By the time I'm out of my neighborhood it's quiet -- but I'm sure the neighbors don't appreciate me squealing through the neighborhood at 7am. ;D Any thoughts?

Title: Re: Morning acceleration squeal.
Post by diamond jim on 03/09/09 at 07:50:00

It sure sounds like belt squeal that went away as the belt warmed up.

Title: Re: Morning acceleration squeal.
Post by PhilM on 03/09/09 at 08:04:23

If you loosen the belt very slightly (took me 1/2 to 1 turn of the 2 adjuster bolts from a squeaking like you describe) it should go away. Don't use any oil or lubricant on the belt as it can pick up dirt.

Having played around with belt tension from A-Z I can confirm it squeals when too tight, and also that it slips when you accelerate hard if its too loose :-[

Title: Re: Morning acceleration squeal.
Post by spike on 03/09/09 at 08:39:02

Mine does to. A lot of times its after running in the rain or damp dirt. I figure its kicking dirt up on2 th belt and pulley makeing noise till it's worn off or hosed down. I ride yr round since Pa don't get very bad weather and get the noise in cool weather more too. Cold expands things so the belt will be snugger in the pulley till warmed up. That's my therory bin wrong before will be wrong again lol. :-/

Title: Re: Morning acceleration squeal.
Post by Sandy Koocanusa on 03/10/09 at 17:32:20

686E7D7B670F0 wrote:

The sound does go away within two minutes. By the time I'm out of my neighborhood it's quiet -- but I'm sure the neighbors don't appreciate me squealing through the neighborhood at 7am. ;D Any thoughts?

Yup. Get a louder muffler. They'll never hear the belt over that.

Title: Re: Morning acceleration squeal.
Post by Savage Eddie on 03/10/09 at 22:17:03

had that prob too on damp mornings, i noticed the belt was rubbing on the inner lip of the rear sprocket. a quick adjustment and it was gone

Title: Re: Morning acceleration squeal.
Post by Jay on 03/11/09 at 00:06:35

Hmm, I too have noticed a bit of squeel the first few minutes of a ride on damp mornings. Never gave it a thought. May need to check my belt alignment.

Title: Re: Morning acceleration squeal.
Post by misterdub on 03/11/09 at 06:39:57

Thanks for all the tips...

7C444540612C0 wrote:

I'll give this a shot! Thanks!

Title: Re: Morning acceleration squeal.
Post by misterdub on 03/11/09 at 06:40:48

656362607D7B60610F0 wrote:

Yup. Get a louder muffler. They'll never hear the belt over that.

Heh, it's like turning up the radio... but for the whole neighborhood. Works for me. :D