Clutch noise?

Discussion in 'Motorbike Technical Discussion' started by Willie The Wimp, Nov 9, 2009.

  1. You missed part of it:
    I've often used a long socket extension.
     
    Willie The Wimp, Nov 19, 2009
    #21
    1. Advertisements

  2. Oil has < 1k miles of use.

    For maybe $10 I could replace the filter, dissect the old.
    Perhaps I'd better do that.

    Thanks,
    Willie
     
    Willie The Wimp, Nov 19, 2009
    #22
    1. Advertisements

  3. OK, so you're familiar with the concept. Listen to the sounds coming
    from
    the clutch cover, the cam cover and the left hand side of the engine
    where the starter clutch is located.

    Wherever the noise seems to be coming from, pull that cover off and
    inspect the mechanisms inside.

    The only thing you cannot easily get to is the transmission.
     
    โอม มณี ปัทเม หุม, Nov 19, 2009
    #23
  4. Do it only if it makes you fell better. Otherwise, just
    listen until it's ready for an oil change or something
    changes. When you do change the oil, definitely
    see what you can capture with a good magnet.

    I do disect oil filters, but figure I'm probably a little
    obsessive that way. Haven't found anything interesting
    in a long time.
     
    Rob Kleinschmidt, Nov 20, 2009
    #24
  5. But you get some peace of mind, having eliminated a multitude
    of potential problems.

    Thanks,
    Willie
     
    Willie The Wimp, Nov 20, 2009
    #25
  6. Working solo (only), I can get to anything on the left side while
    holding clutch lever in. Worth investigating.

    Thanks,
    Willie
     
    Willie The Wimp, Nov 20, 2009
    #26
  7. There is nothing wrong with your clutch. Said it when you first started
    bleating; saying it again now.
     
    The Older Gentleman, Nov 20, 2009
    #27
  8. You can always wrap a bungee cord around the clutch lever after you
    pull it in, yannow...

    Then you will be free to move around the bike. It won't hurt anything
    to bungee the lever for a minute or so.

    If a seriously loud rattling noise goes away when you pull the clutch
    level in, the ball bearing bearing (or bushing) inside the clutch
    basket is worn out or the big nut holding the clutch center hub to the
    transmission shaft is loose.

    However, a certain amount of noise is normal in this design.

    Air-cooled clutches are really noisy. If you ever heard a Ducati
    clutch rattling, you'd
    wonder how the rider could stand all that noise.
     
    âÍÁ Á³Õ »Ñ·àÁ ËØÁ, Nov 20, 2009
    #28
  9. I'm actually inclined to agree with you.

    But I'm damned if I have a clue why folks here are failing to suggest
    plausible explanations for the conditions I've described.

    And there's been some confusion about the precise conditions, so I
    here repeat both for clarity:

    1.):
    Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
    top, dis-engage clutch, coast down hill in 3rd. with clutch lever
    actuated. When I hunker down, I can hear a sort-of growling/grinding
    noise.

    This is "normal operating noise" for a bike with a wet clutch?

    2.):
    A 2nd scenario. I go out the garage, start the bike cold, hold the
    clutch lever in whilst in neutral gear, hear a very similar sort-of
    growling/grinding noise. By the time I roll the bike out the garage
    (maybe 15 seconds), the noise stops. I always try to wait for this
    before shifting to 1st gear (less clunk).

    Normal clutch noise?

    In each case, I'm hearing the noise with the clutch lever fully held
    in (clutch disengaged). The other day, when I replicated 2.), it
    took only about 5 seconds before the noise ceased. If I wait another
    maybe 10 seconds, it won't clunk shifting into 1st.


    Willie
     
    Willie The Wimp, Nov 20, 2009
    #29
  10. <snip>

    Without hearing the damn bike for ourselves, there's no sure way of
    knowing. But the former could be clutch rattle or just chain noise and
    the latter just clutch rattle.

    No worries. It's not a buggered camchain, or a knackered starter motor,
    and your transmission isn't about to blow up. Just ride the damn thing.

    And when/if it breaks, fix it. In the meantime, stop worrying.
     
    The Older Gentleman, Nov 20, 2009
    #30
  11. Willie The Wimp

    M.Badger Guest

    It isn't unusual to get noises like that. Try snicking neutral. Is the noise
    the same?. If so, its final drive. Try 4th. Different noise?.

    It may be as simple as the chain/sprockets alignment or tension.

    Yeah, my Bandit does similar.

    <fx:wavy lines of time>

    Many many years ago, during a prolonged period of sub zero temperatures, I
    left my girlfriends and started my bike up with it on its centrestand
    whilst I had a cigarrete. The rear wheel was merrily rotating away when an
    elderly gentleman sidled up. 'Oh shit, here goes another 'when I were a
    lad' type monologue. 'Nice to see you take the time to warm the oil up.
    When the back wheel stops turning, your oil is warm enough for you to
    ride.'
    Cold oil causes a lot of drag. Cold clutch plates stick to the metal plates,
    effectively only giving partial disengagement, hence the clunk. Let
    everything warm up a bit before setting off.

    The clutch is riding on its release bearing. Some of these are a bit noisy.
    Someone up there said about magnetic sump plugs and cutting the filter.
    Can't argue with that. You will get some very fine metal particles adhering
    to the magnet. Almost a powder. Nowt to worry about. In your oil filter,
    you may find some clutch material. Again, nowt to worry about.

    Bronze coloured metal not good. Shavings not good. If it really bothers you,
    get someone else to ride it whose opinion you hold in high regard. If the
    clutch disengages OK, rides in its friction zone OK and doesn't slip with
    the lever all the way out and all the gears engage smoothly when the engine
    is warm and the oil fresh, just wear earplugs.
     
    M.Badger, Nov 20, 2009
    #31
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.