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Vibration / tictic sound at lower speed

iespich

iespich

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Sep 24, 2020
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While at low speeds between 20 and 40 mph I have a tictic vibration sound coming from the CVT area (so i think). It goes away under a decent load, but cruising between 20 and 40 it's constant. Just seems annoying since it developed after its first service. Anyone else have this sound or know what needs tightened?
 
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yes, a noice exactly 20 and 40. i think is in the plastic joints. my mechanic told me to wait until it gets 5.000 klm and then he will stick a 3M tape or something like that
 
Today I rode with the outside CVT cover off (the grey one) with the bolts reinstalled to see if that’s what was rattling but it wasn’t. Seems more internal to me.
 
Hello, I have a tictic sound comes from (I think) rear lever , it’s like the sound lever does ( tic) when you push it but it’s a bit louder. It’s really disturbing!
Any thoughts?
 
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I have a ticking sound as well which appears to be more hearable when the outside temperature is higher. I found that the locking mechanism of the flexcase, causes the ticking sound. This mechanism excists out of two metal parts. Later i will add a tape or maybe a silicon tube to it to prevent the sound since the dealer was not able (or willing) to trackdown the sound
 
imho it's the vario rollers.
i have it too from about 25kph to about 55kph, but i've noticed that when i open the throttle more is goes away (more revs).
is this also the case with all of you?
sound does come from behind, left, so location of the vario.
i'm opening up the case soon and i'll report back if i find something unusual.
 
so today i got the variocase opened up.
i may have found the cause of the '1/8 to quarter throttle' ticking noise.
have a look at the vid and tell me what you think.
first you see the vario in 'high gear' with very little play, then you see the vario in 'low gear' and there you have it... lots of play and sound similar to what i hear at about 1/8 to quarte throttle.
"https://player.vimeo.com/video/753383114?h=88195f18df"
 
That’s an excellent video.We just bought 2 brand new c400gt ions and we go 500 meters from the dealer and turned around to complain around this noise from the cvt.
We returned to the dealer 2 days later for them to test ride the bikes and were told it’s the 6 cvt rollers.we paid really good money for the bikes and didn’t expect such a terrible noise from a brand new BMW bike.I will be showing them this video.Thank you
 
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