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Buell Motorcycle Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through June 01, 2008 » Metallic Clunking Sound at Takeoff. « Previous Next »

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Uly1080
Posted on Friday, May 23, 2008 - 02:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

For the regulars on this board it may be becoming obvious my bike needs a little attention instead of just the daily floggings it receives here in the mountains...Anyway, as the title suggests, I'm starting to notice a metallic clunking sound at times when I first take off from a stand still, or if I shift at a lower RPM and then give it the gas. Any thoughts besides ceasing to thrash my bike? Thanks.

Josh
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Froggy
Posted on Friday, May 23, 2008 - 02:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Without hearing it, its hard to say. Could be pinging, or it could be normal valve chatter. Can you describe the sound better?
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Uly1080
Posted on Friday, May 23, 2008 - 02:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If I had to chose between the descriptors "ping" or "chatter" I'd go with chatter. Doesn't really strike me as pinging, and have never experienced it before. It only last for a second or two as it goes away once the RPMs go up and things smooth out. I'm not riding any different than what I have in the previous 6000 miles, so...
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Rwcfrank
Posted on Friday, May 23, 2008 - 03:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Double check the horn, I bent mine back when I first got my bike and it started hitting again. Its an awful sound..
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Natexlh1000
Posted on Friday, May 23, 2008 - 05:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Primary chain a little floppy in there perhaps?
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Johnboy777
Posted on Friday, May 23, 2008 - 08:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm starting to notice a metallic clunking sound at times when I first take off from a stand still, or if I shift at a lower RPM and then give it the gas. Any thoughts besides ceasing to thrash my bike? Thanks.

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Bobr
Posted on Friday, May 23, 2008 - 09:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

A metallic clunk is something I associate with transmission, not that I'm a mechanical genius. Where does the sound seem to be coming from? Is it in all gears or only in first? Any other symptoms, like lurching or surging for example?
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Uly1080
Posted on Friday, May 23, 2008 - 10:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Primary chain/tranny was a good call. I pulled out the old service manual and the chain was a bit loose, so we'll see what happens tomorrow when I ride. Thanks for the input so far.
JB-as a matter of fact, I did notice it the one time I didn't have earplugs in.
Don't know what I'd do without you guys...probably spend a lot of money at a Harley shop.
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Erz
Posted on Saturday, May 24, 2008 - 01:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Is your clutch cable spring broken and gingleling on the exhaust header
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Uly1080
Posted on Saturday, May 24, 2008 - 01:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Nope. Just replaced it with the new one.
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