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Thread: gear box noise

  1. #1
    Senior Member DSHUMAKER's Avatar
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    gear box noise

    I posted this on the forum face book page last night so I'm going to hit every one here. Long story short I had adjusted the primary chain and didn't tighten the lock nut enough and it backed out on a ride. readjusted it. Now when in neutral sounds fine in gear it makes a horrible clunky sound.

  2. #2
    Senior Member DSHUMAKER's Avatar
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    Sorry about the lack of detail I have to head to work.

  3. #3
    Senior Member Chicknstripn's Avatar
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    The plastic guide/shoe that tensions the chain my have gotten damaged.
    I would plan on pulling the primary cover to inspect exactly what's going on inside the primary.
    Something minor could lead to something catastrophic if not attended to early.
    Chances are the noise my have always been there and you're just now hearing it BC you think something is a miss.
    If you're very careful you won't even need to replace the primary gasket.
    Despite what others might say, I've reused a primary gasket in the past with ZERO issues.
    Even if nothing is wrong, doing a good inspection you'll at least have the peace of mind that everything has been throughly checked.

  4. #4
    Senior Member DSHUMAKER's Avatar
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    The primary is already off things look ok I'm planning on changing the shoe and chain any way. I'm going to pull the clutch and output drive pulley to check out the bearings. Figure that's a good place to start. The more I think about it she's had a clunk when I hit the rear brake hard for a few weeks. That's why I want to check the output bearing.

  5. #5
    Senior Member Chicknstripn's Avatar
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    Does the clunk happen when you down shift without the brakes?
    I'd check the rear wheel bearings and the brake hardware/bracket.
    Keep us posted on what you discover

  6. #6
    Senior Member DSHUMAKER's Avatar
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    Will do but this is coming from the trans. I had it on stands last night fired it up and nothing in neutral sounds about normal for my bike when you put it in gear with clutch engaged normal but when disengaged and the wheel is spinning you can hear it feel it.

  7. #7
    Senior Member Cooter's Avatar
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    Try spinning the rear wheel by hand. Does it feel rough? Loud?

  8. #8
    Senior Member Chicknstripn's Avatar
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    For your sake, I hope it's not the trans.
    Hopefully it's in the clutch.

  9. #9
    Senior Member DSHUMAKER's Avatar
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    Long time cooter....doesn't really feel rough or loud when I spin it by hand but I just noticed that you can wiggle the clutch basket some it has play.

  10. #10
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    Did you change the brake pads recently? I did a front brake check a while back and when I put the pads back in, the pad slipped out of the spring clip and allowed the pad to move back and forth, rattling when I would engage the front brake, and it felt like a clunking. I assume the rear brake could be similar.



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