New noise coming from bike while "cruising"

Discussion in 'Motorbike Technical Discussion' started by melement, Jun 22, 2007.

  1. melement

    melement Guest

    I own a 2000 Honda Shadow. Recently, I am hearing a new noise coming
    from my bike. It occurs when I am cruising (not applying any gas) at
    any speed, in any gear.

    I start to hear, not a grinding noise, and not exactly a clicking
    noise, but something that sounds in between. It is a *light*
    combination noise that sounds like a cross between clicking and
    grinding. I haven't had a chance to dig into my bike, and find out
    exactly what is making that noise, I believe it is coming from the
    clutch, down below.

    Anyone have any ideas?

    Thanks
     
    melement, Jun 22, 2007
    #1
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  2. Sounds like a slack chain to me. What model of Shadow, anyway? Chain
    drive?
     
    chateau.murray, Jun 22, 2007
    #2
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  3. melement

    melement Guest

    Yes, it is a chain drive. It is a 750 ACE Shadow. I think I am going
    to replace the chain, and tension in up properly. Taking a quick peek
    at it, it appears that it is a little more loose than it should be.

    I also noticed that the bike it starting to run a little more hot than
    it should, I'm in a much hotter location now, and I've had the coolant
    replaced, and just changed the oil, and went to a slightly thicker
    oil, a 20w50.

    Thanks
     
    melement, Jun 22, 2007
    #3
  4. If you knew *anything* about how Honda secures its chains, you would
    know that this "silly piece of stamped sheet metal" is actually quite a
    stout piece of kit.

    As there is *no* lateral force on the gearbox sprocket, the two little
    bolts that secure it are all that is needed.

    Furthermore, Honda ensures that should something really odd happen, and
    the bolts fall out (and I have owned literally dozens of Hondas that
    employ(ed) this system), then usually - not always, I grant you - the
    sprocket cover that, er, encloses the gearbox sprocket ,is so
    close-fitting that there is not enough clearance for the sprocket to
    come off the end of the shaft.

    The worst that can happen is that it starts rubbing on the inside of the
    sprocket cover and making a terrible noise, which would be enough to
    alert even the terminally ignorant.

    To the OP - this man is posting complete irrelevance and nonsense. You
    havbe a chain that needs adjustment - and, yes, possibly is worn out. No
    more than that. And you don't need to replace the fixing plate, either.
     
    The Older Gentleman, Jun 22, 2007
    #4
  5. Yes, good idea. Lube it as well.
    That's your problem: no more, no less.
    Ummmm... unless you're in a really hot location (Arizona? Nevada?
    Central India? Saudi Arabia?) that probably isn't necessary.
     
    The Older Gentleman, Jun 22, 2007
    #5
  6. melement

    melement Guest


    You got it, I'm in Las Vegas, NV; current temperature is 108.
     
    melement, Jun 22, 2007
    #6
  7. melement

    melement Guest

    Thanks for the heads up. I will be replacing my chain this weekend,
    as it doesn't look like its in the best condition, and I think it is
    about due anyways.

    Thanks for the help
     
    melement, Jun 22, 2007
    #7
  8. Probably a wise move, then.
     
    The Older Gentleman, Jun 23, 2007
    #8
  9. Wrong. It is surprisingly hard.
    You don't actually know how Honda designs that fixing. There is a groove
    running round the end of the output shaft. The (surprisingly hard) plate
    is rotated slightly so that it slides over that groove, and then rotated
    so that it slides onto the splines. I

    Once rotated, because of the design of the plate and shaft, it cannot be
    reoved unless it is rotated back again. Obviously the sprocket just
    slides on and off the splines.

    The plate is then bolted up tight against the sprocket.
    The plate method is completely different from the securing nut you
    describe.

    I have a 30 year-old Honda that uses this design. It's on the original
    plate, as far as I know.

    Interestingly, my Ducati uses the same means of securing the sprocket.
    In the very early days, the fixing plate was indeed very soft metal, as
    you describe, and it did indeed wear. Ducati changed the design for one
    made of harder metal, and the problem went away.

    I remember being advised to change the plate at the first service, and
    when I looked, you could see wear marks. That was at 6,000 miles. It's
    been on the same plate ever since, and is now approaching 30,000 miles.
     
    The Older Gentleman, Jun 23, 2007
    #9
  10. melement

    oldgeezer Guest

    On 23 jun, 10:28, (The Older
    Gentleman) wrote:
    Umm... my bike did 100kmiles on the original (pretty hard) plate. It
    looks as
    it can take another 100k.

    And --as a former designer of production machines-- that plate is an
    excellent way to secure the gear wheel. People that think it to be a
    'silly
    device' don't know anything about mechanics.

    Rob.
     
    oldgeezer, Jun 23, 2007
    #10
  11. melement

    oldgeezer Guest

    On 23 jun, 10:28, (The Older
    Gentleman) wrote:
    Umm... my Honda did a 100kMiles on it. It looks as if it can take
    another
    100k.
    And --as former designer of production machines-- that fixture is
    a perfect way to secure the sprocket. People who think it to be a
    'silly device' don't know anything about mechanics.

    Rob.
     
    oldgeezer, Jun 23, 2007
    #11
  12. I couldn't have put it better myself. Honda has been using the system
    for at least 40 years, and probably longer. If it was crap, you'd think
    they might have changed it by now.

    "Boss-san, leave soft metal plate in and let sprockets fall off and
    destroy engine every few thousand miles!"

    No, I don't think so.
     
    The Older Gentleman, Jun 23, 2007
    #12
  13. He doesn't know, Nor do you. Who cares? It's a part that has worked
    successfully for Honda for four decades.
    In other words, you guessed.

    You don't know much about bikes. You seem OK on carbs, but for bikes,
    you don't have the experience. You haven't owned, or even ridden,
    anywhere near enough to be able to make the right value judgements. You
    just look at a schematic and draw the wrong conclusions.
     
    The Older Gentleman, Jun 24, 2007
    #13
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