Africa twin "clunk" over small bumps. Bumot or center stand?

Discussion in 'Land of the Rising Sun: ADV Bikes from Japan' started by nixter, Jul 14, 2017.

  1. seancampbell

    seancampbell Been here awhile

    Joined:
    May 28, 2006
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    437
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    Gosford, NSW. Australia
    Yes, that's it.
    #21
  2. BygDaddee

    BygDaddee Where do I get a pie

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    Oct 26, 2012
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    Brisbane Northside, OZ
    Are you sure the clunk isnt from inside fork ?
    #22
  3. neppi

    neppi Adventurer

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    Mar 9, 2017
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    Tauranga, New Zealand
    My Transalp had a similar kinda issue. Couldn't figure out what it was, until I was mocking around with the rear brakes. The brake pad sliding pin and the eyelets in the pads were all sooooo worn that they were rattling and clunking randomly. Cheap fix was to put some heatshrink tube over the pin. I was going to rebuild the brakes anyway in a little while.
    #23
  4. Copracer288

    Copracer288 Adventurer

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    Aug 27, 2015
    Oddometer:
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    My noise is definitely coming from "underneath me", not up front, that's why I say it's not steering head bearings or a fork issue.
    #24
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  5. King of Beers

    King of Beers Adventurer

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    Mar 24, 2017
    Oddometer:
    36
    I would bet you are probably hearing the same slap noise most CRF1000L owners are hearing. I have not pinpointed the location myself, i just accept the general consensus that it is caused by the chain slapping... something...
    #25
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  6. nixter

    nixter Adventurer

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    90
    The slap could be my issue. Doubtful it's fork or rear spring related.

    Sent from my Pixel XL using Tapatalk
    #26
  7. atctim

    atctim Big Red Pig Farmer

    Joined:
    Apr 25, 2011
    Oddometer:
    39
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    Pennsylvania
    The more I look and think about it, the more I think it is chain slap. The length of chain on the long swingarm is a lot of contact to contact. The chain is slapping the chain slider on top of the swingarm. I am going to have someone ride beside me and video it sometime soon. Should confirm what I am hearing.
    #27
  8. b76

    b76 Adventurer

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    Sep 1, 2009
    Oddometer:
    37
    Location:
    oregon
    You are correct.
    I have the same noise. I was thinking something was wrong so I started watching it while riding (probably not safe). The noise happens when the chain slaps.
    #28
  9. bobbyimp

    bobbyimp Adventurer

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    Nov 17, 2010
    Oddometer:
    77
    Location:
    San Francisco
    I can live with this.........:clap
    #29
  10. nixter

    nixter Adventurer

    Joined:
    Apr 27, 2017
    Oddometer:
    90
    So turns out it's the Bumot bash plate. I think I forgot to use loctite on a couple spots. The noise has progressed and I can actually kick the bash plate now to replicate the noise. When I fix it I also want to see if I can modify the mounting with some rubber grommets or something.
    #30