Bonneville transmission whine

Hi - I have a 2001 Bonnie with 12k on the clock. Now I don't know if it is normal but when I am decelerating I there is a pretty loud whine which seems to be coming from the transmission. I had not really taken much notice of it (I used to have a Virago which was much the same) but when my Son bought his 2004 Bonnie Black (20K) I realised how quiet his was, even the engine is on his is pretty quiet against mine which tends to whirr, whirr a lot.

So I am wondering, is this an inherent early model 2001 thing, is my Sons bike an exception to the norm for Bonnies or do I have a problem?

Any thoughts or info gratefully received

thanks

Trev

 

Anyone?

 

Hi Steve

Thanks for responding.

There are no gear change issues. I guess it does sound a bit metallic - like a worn bearing sound in the final drive.

Seems strange though on a bike of such low mileage.

I had a Virago 535 which was similar but when I asked my local bike guy to check it he reckoned that that was par for the course for the Yammy.

It is mainly there when I change down and decelerate - maybe its quite normal but its weird that my Son's 2004 Bonnie is so much quieter.

Thanks

Trevor

 

Hi Sprintdave

I will check out the points you raised thanks.

I did change the original engine covers for nice shiney chrome ones and the sprocket cover on the original does have a rubber dampner. The same thought crossed my mind so I replaced it but makes no difference. The engine has the usual Bonnie whirl-whirl noise which is usual and it goes really well especially since I removed the Secondary Air system crap and bought a carb balancer to set up the carbs (what a difference both these exercises make!).

So I guess I will put up and shut up with the tranny noise and assume its a 'Bonnie thing'.

Maybe if it gets worse I will have a strip down and check it out but for now its not really a problem just a bit annoying.

Thanks you all your help guys