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Thread: Clunk

  1. #1
    Junior Member Wade Backlund's Avatar
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    Clunk

    I notice a clunk feel when going down gears into I think second. Dang I might be off one. Is that normal? Any reason why? Sometimes I’ll downshift all the way to first when stopping. Is that not recommended? New guy to riding. Thanks!

  2. #2
    Senior Member RockyTFS's Avatar
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    Yes, the TW clunks on downshifts. It can be lessened by learning how much to rev during the downshift. You want to bring the RPMs up to whatever they will be in the next lower gear after releasing the clutch. This will vary somewhat depending on whether you are braking hard on the downshift, going up or down hills, etc. If you do it right there won't be much clunking....it's just a quick little blip.

    I always shift into first at a stop, but only at the last few feet because you can skid the rear wheel if you do it at too high of a speed.....Don't ask me how I know this! At stoplights I ALWAYS want to be in first gear because if you are about to get rear-ended you need instantaneous acceleration!
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    2014 BMW R1200GS LC

  3. #3
    Senior Member reddave's Avatar
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    My bike has a noticeably louder sound when shifting down to first compared to the other gears. I can't say whether that is normal or not, but sometimes on the trail it helps quickly confirm that I'm all the way down before tackling that hill climb.
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    1987 Yamaha TW200

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  5. #4
    Junior Member Wade Backlund's Avatar
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    Thanks!

  6. #5
    Senior Member Darth's Avatar
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    Dave, that's "probably" normal.
    The relatively wide gap between a T-Dub's 1st & 2nd gears can cause it as the gears try to mesh up .

    Try this: just as you de-clutch & downshift from 2nd to 1st, blip the throttle just a bit.
    Don't do the 2-1 downshift too soon, wait until you are close to stopping, but not so much that you have to put a foot down.
    That should do it...if not, play with the timing of the sequence.

    It's easier to do than explain...he says as he sips the last of his first Jack Daniels 'Devil's Cut'/Rocks of the evening!
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    "Faster, faster, faster, until the thrill of speed overcomes the fear of death."
    - Hunter S. Thompson

    “It’s more fun to ride a slow bike fast, than a fast bike slow”.

    "The less horsepower a motorcycle has, the more it can teach you.” - Ben Bostrom

    And though a mountain may rise up and smack the livin' shit outta me,
    and wad up my bike somethin' awful...
    Still, I rise!
    (With apologies to Maya Angelou)


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  7. #6
    Senior Member Scooterbrained's Avatar
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    Quote Originally Posted by reddave View Post
    My bike has a noticeably louder sound when shifting down to first compared to the other gears. I can't say whether that is normal or not, but sometimes on the trail it helps quickly confirm that I'm all the way down before tackling that hill climb.
    The difference in the ratio from second to first is greater than any other two gears. The heavier clunk sound is the sudden and greater amount of jar as the speed of the trans shaft has to match the speed of rear wheel now being driven by the rear wheel but at a much higher speed because of the much lower ratio. If you blip the throttle as you start to pull in the clutch you will speed up the trans shaft just before the downshift to first and the sudden jar will not be as harsh as first in engaged. And it is better for all aspects of the transmission and clutch.
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  8. #7
    Senior Member Scooterbrained's Avatar
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    Oops sorry Darth! You beat me to the punch as I was slow typing.
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  9. #8
    Senior Member Darth's Avatar
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    And you did it all without any Jack Daniels!
    Or did you...
    reddave likes this.
    "Faster, faster, faster, until the thrill of speed overcomes the fear of death."
    - Hunter S. Thompson

    “It’s more fun to ride a slow bike fast, than a fast bike slow”.

    "The less horsepower a motorcycle has, the more it can teach you.” - Ben Bostrom

    And though a mountain may rise up and smack the livin' shit outta me,
    and wad up my bike somethin' awful...
    Still, I rise!
    (With apologies to Maya Angelou)


    "Give a Damn"
    - C. M. Howe, Jr.

    Hidden Content

  10. #9
    Senior Member Scooterbrained's Avatar
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    I uh, well, er uh . . . was that a trick question?
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  11. #10
    Member El Chivo's Avatar
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    I imagine it was an invitation. Cheers!
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    Ride like your life depends on it.

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