Author [NL] [FR] [ES] [DE] [SE] [IT] [NO] [MY] Topic: (Not so) good vibrations!  (Read 962 times)

0 Members and 1 Guest are viewing this topic.

Online CBM

  • Crossrunner Member
  • **
  • Posts: 76
  • Bike: 2017 Crossrunner
  • City / Town: NW London
  • Country: UK
Re: (Not so) good vibrations!
Reply #20 on: January 20, 2020, 01:20:12 PM
Should we assume any possible tyre/wheel issues have been eliminated?

Offline Skids

  • Crossrunner Master
  • ****
  • Posts: 935
  • Bike: 2018 800X
  • City / Town: Hitchin
  • Country: UK
Re: (Not so) good vibrations!
Reply #21 on: January 20, 2020, 01:46:50 PM
*Originally Posted by CBM [+]
Should we assume any possible tyre/wheel issues have been eliminated?

It wasn't that kind of vibration, it was much more high frequency, low amplitude so most likely engine-derived but then most engines put those kind of vibes out anyway, it's just on the VFR, they're usually dampened but on SX's, a little bit seems to be getting through. However, to be on the safe side, we did discuss losing the Scorpion Trails  (:004:) and getting some better rubber.
1 VFR simply isnt enough! Crossrunner for commuting, VFR1200F for summer fun.

Offline SXHighwayman

  • Crossrunner Member
  • **
  • Posts: 74
  • Bike: VFR800X 2016
  • City / Town: INGATESTONE
  • Country: United Kingdom
Re: (Not so) good vibrations!
Reply #22 on: January 20, 2020, 02:14:06 PM
Lol, yes. The Scorpion Trail 1's will be exchanged when the better weather comes in in a month or so's time.

As it can be reproduced stationary that rules out wheels, forks, chain etc.

It's odd though as my bike is stock as far as I can tell. Skids did notice that my forks appear to have been fiddled with as in someones played with the front suspension adjusters - not sure if that's a possible cause of vibe transmission when rolling.

Offline voodoo

  • Crossrunner Pro
  • ***
  • Posts: 157
  • Bike: RC80
  • City / Town: The Hague
  • Country: Netherlands
Re: (Not so) good vibrations!
Reply #23 on: January 20, 2020, 08:59:07 PM
*Originally Posted by SXHighwayman [+]
so solving bar vibes look a little like voodoo.

No it doesn't!!  :110:  :016:
Stop making sense

Offline Newbs1ok

  • Crossrunner Member
  • **
  • Posts: 48
  • Country: England
Re: (Not so) good vibrations!
Reply #24 on: January 22, 2020, 12:33:07 AM
Silly idea but could it possibly be the drive sprocket isn't fitted properly ie it is loose
Just a thought that may well be why the vibes are there only when there is power goon through the power train when riding, but when freewheeling it goes
Just a thought
Current Bikes
VFR 800 X 2015 and BMW R850GS 1999
Previous bikes
Too many to mention in 46 wonderful years of riding on the road ,  everyone of them have given my stacks of fun and satisfaction

Offline Scimitar

  • Crossrunner Member
  • **
  • Posts: 54
  • Bike: VFR800X
  • City / Town: Pulborough
  • Country: England
Re: (Not so) good vibrations!
Reply #25 on: January 22, 2020, 06:43:19 AM
 :028:  Good idea.  Anything is worth following up, particularly with all the drive train stuff.
Who in their right mind would design a vehicle that falls over when it stops?

Offline Skids

  • Crossrunner Master
  • ****
  • Posts: 935
  • Bike: 2018 800X
  • City / Town: Hitchin
  • Country: UK
Re: (Not so) good vibrations!
Reply #26 on: January 22, 2020, 07:55:57 AM
*Originally Posted by Newbs1ok [+]
Silly idea but could it possibly be the drive sprocket isn't fitted properly ie it is loose
Just a thought that may well be why the vibes are there only when there is power goon through the power train when riding, but when freewheeling it goes
Just a thought

Worth checking but it didn't feel like that kind of vibe to me.  :028:
1 VFR simply isnt enough! Crossrunner for commuting, VFR1200F for summer fun.

Offline Newbs1ok

  • Crossrunner Member
  • **
  • Posts: 48
  • Country: England
Re: (Not so) good vibrations!
Reply #27 on: January 22, 2020, 03:05:35 PM
I had something similar with a 750k2 back in the day
I bought it of my dad and the bike had been pulling an outfit and needed a new chain and sprockets as they were shot
I replaced them but omitted to add locktite and torque the locking bolts on the drive sprocket (forgive me please I was only about 18 and naive )

On a trip to France with my mates was getting some vibration from the engine which went when clutch pulled in fortunately I had replaced the sprocket cover screws with Allen screws so at campsite took cover off and found two loose bolts,

Campsite owners kindly lent me socket set and torque wrench and some locktite

Job done and valuable lesson learnt as being naive never even have breakdown cover could have gone tits up vary easily

Current Bikes
VFR 800 X 2015 and BMW R850GS 1999
Previous bikes
Too many to mention in 46 wonderful years of riding on the road ,  everyone of them have given my stacks of fun and satisfaction

Offline SXHighwayman

  • Crossrunner Member
  • **
  • Posts: 74
  • Bike: VFR800X 2016
  • City / Town: INGATESTONE
  • Country: United Kingdom
Re: (Not so) good vibrations!
Reply #28 on: January 22, 2020, 03:50:34 PM
I can have a look around all the fastenings this weekend when I get a chance.

On the run home last night I noticed that although the bars vibrate at the ends - where the grips are  - I can't feel any vibes around the bars where they connect to the risers. This may be normal behaviour but it surprised me.

Offline Gramps99

  • Crossrunner Member
  • **
  • Posts: 19
  • Bike: 16 crossrunner
  • City / Town: Worcester
  • Country: Uk
Re: (Not so) good vibrations!
Reply #29 on: January 28, 2020, 11:09:06 AM
What is in the bar ends? Mine has a threaded weight.  Are the bars standard?


 


* Recent Topics