Whining noise on 2018 650 Sport

[Low On Cash]

Hey guys - I just acquired a 2018 650 sport, say I'm running a 40-45 mph, and anytime I lower the throttle to where she begins to coast, I get an annoying whining noise from the drive train, is this normal for these bikes or do I have a problem.

Thanks In Advance

 

[Low On Cash]

Here's a movie I did where you can hear the noise - it starts out as I let off the throttle 40 mph and worst around 30 mph - its not real loud in the video because of the wind but loud on the bike.

Here the link:

http://www.rotory.com/bike/650/whine.mov

 

[TwoPort]

Here's a movie I did where you can hear the noise - it starts out as I let off the throttle 40 mph and worst around 30 mph - its not real loud in the video because of the wind but loud on the bike.

Here the link:

http://www.rotory.com/bike/650/whine.mov

Mine does the same thing.

 

[Low On Cash]

Mine does the same thing.

TwoPort you just made me a happy biker - nothing I hate worse than to bring a new bike in to a dealer for exploratory surgery. I figure it has to do with the CVT -If you look at the graph as it comes down in speed, at 40 mph it hits its lower ratio which is exactly where my noise begins.

How old is your bike - did it do it right from when you got it. Sure be nice to get a few other guys to chime in to confirm they too have the whine.

Thanks Mike

 

[TwoPort]

TwoPort you just made me a happy biker - nothing I hate worse than to bring a new bike in to a dealer for exploratory surgery. I figure it has to do with the CVT -If you look at the graph as it comes down in speed, at 40 mph it hits its lower ratio which is exactly where my noise begins.
How old is your bike - did it do it right from when you got it. Sure be nice to get a few other guys to chime in to confirm they too have the whine.
Thanks Mike

I've got a 2013 GT and it was from birth. I also think it's the CVT. Never bothered me and sometimes I notice but mostly its now an ignored sound.

 

[bicyclenut]

Sounds like a familiar noise. Not sure where from, but I've heard the same, 2014 GT here.

 

[Low On Cash]

Sounds like a familiar noise. Not sure where from, but I've heard the same, 2014 GT here.

Thanks -cool I'm just going to assume its normal - I have a MP3 and it has a tiny bit of the same noise - not sure if the 650 uses a Kevlar belt - maybe that's whats talking?

Regards - Mike

 

[Low On Cash]

Ok I'm totally convinced all the 650's have this same noise, the reason I know is; if you go to the BMW site select the 650 GT then click "Start the Engine" I can hear the same whine noise barely in the back ground.

Regards - Mike

https://www.bmwmotorcycles.com/en/m....html#/section-the-highlights-of-the-c-650-gt

 

[Ken R Marcus]

I never noticed it until you guys mentioned it. I actually thought it was just some harmonics when I was a red light and sound was just bouncing off other vehicles.

 

[Skutorr]

Some years ago I noticed a whining noise in back, but it turned out to be my pillion passenger...

 

[Low On Cash]

Some years ago I noticed a whining noise in back, but it turned out to be my pillion passenger...

Good one Skutorr - I'll have to remember that one!

Regards

 

[Low On Cash]

Just pushingthis back up in hopes of getting more input - Thanks

 

[Nokey1]

yep..mine is the same..albeit a bit quieter...think its the clutch pulley gearing down

 

[fluufy]

Mine does it. Sounds like gear noise, and is relative to road speed so I suspect is the final drive gears. Only when cruising, when accelerating or off the throttle there is no noise (apart from engine [emoji16]). Seems to be normal.

Sent from my SM-T810 using Tapatalk

 

[davidh]

Sounds just like the clutch; it whines a bit right before disengaging. Or when it's worn out but that's unlikely unless you have over 50k miles.