Strange noise- Decel only

[Stuart49]

My Spyder #445 with about 5800 miles makes a stange whine/growl when decelerating. It first whines at about 22 mph, then maybe 17, and another time or two as the bike comes to a stop. This means if I decel to go around a corner, it will whine once or twice as I slow. The noise is a brief whine, and occurs with the clutch in or out. All other functions are fine - clutch, gearchange, selecting neutral, etc. Never makes a whine while accelerating. Runs very smoothly at any speed.

I have a hunch that this is my belt alignment, or tension. I have carefully adjusted the belt in an attempt to get it to track slightly off the flange - it is still just against the flange. I have a Gates sonic tension meter, and yesterday I have reduced the tension from about 1050, where it has been for a while, down to about 825N. The whine is exactly the same!

Any ideas? Has anyone else experienced this whine/growl?

Stuart

 

[spickus]

Yes - http://www.spyderlovers.com/forums/showthread.php?t=6004

It's at the dealer today, I'll let you know what I find out.

 

[Trypod]

On my HD's, belt whine or humming was often caused by a dirty belt. Washing it with a mild detergent and a soft bristle brush usually clears it right up. Belt dressing products usually make the problem worse.

:agree: Just a few of the things I absolutely hate as a mechanic: ether (starting fluid) dries the cylinder walls and "addicts" an engine over time, fix-a-flat dries the cords from the inside of the tire and makes mounting and balancing a tire a PIA if not completely cleaned before remounting the tire, belt dressing ditto on fix-a-flat and glazes the belt making squeal progressively worse, dries and cracks the belt (any belt).........:chat:

 

[NancysToy]

:agree: Just a few of the things I absolutely hate as a mechanic: ether (starting fluid) dries the cylinder walls and "addicts" an engine over time, fix-a-flat dries the cords from the inside of the tire and makes mounting and balancing a tire a PIA if not completely cleaned before remounting the tire, belt dressing ditto on fix-a-flat and glazes the belt making squeal progressively worse, dries and cracks the belt (any belt).........:chat:

Don't forget Slime!

 

[Trypod]

:agree: Oops, how could I let that one pass....of course I will make the claim now that my "hate" list was not all inclusive.....