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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through April 21, 2008 » Rattle when opened up « Previous Next »

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Darth_buell
Posted on Sunday, April 13, 2008 - 08:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

When I am for example getting on the freeway, and I open her up, every once in a while I will get a rattle that sounds like it coming from somewhere down low but haven't looked yet.... Any Ideas where to start.
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Akbuell
Posted on Sunday, April 13, 2008 - 09:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Check for things like loose/missing fasteners on the chin fairing, muffler, windscreen, ect. Sidescoops come to mind. You might also try hitting various places on the frame, forks, rear subframe with the flat of your hand and see if you hear anything rattling. Belt guards, rear hugger?
Hope this helps. Dave
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Growl
Posted on Sunday, April 13, 2008 - 09:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Could be pinging... Do you run premium only?

Does it tend to happen at lower RPMs as compared to higher RPMs?
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Old_man
Posted on Sunday, April 13, 2008 - 11:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I agree, it could be pinging.
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Jos51700
Posted on Sunday, April 13, 2008 - 11:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Feed the hamsters, that's their little stomachs growling.
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Akbuell
Posted on Monday, April 14, 2008 - 11:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Pinging (detonation) was my second choice, but didn't really want to bring it up. If you are rolling in a big handful of throttle, from a lowish RPM (say, below 3,000), in fifth gear, pinging is a definite possibility. It would be heard and felt as a heavy, mechanical rattle. Very close to a diesel engine at idle. Loose body parts will be more "buzzy".
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Norrie
Posted on Monday, April 14, 2008 - 12:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Check your oil level.
They do tend to burn a bit of oil.


Norrie.
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Darth_buell
Posted on Monday, April 14, 2008 - 02:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Never even thought about pingin. No past experiences with that "sympton."Thanks alot felles, What the hell do I do about that..... Only Cheveron Premium fuel. Is that normal, Or is it just common, Anything I can do. I'm all ears
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Old_man
Posted on Monday, April 14, 2008 - 03:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Timing check?
Until then, I would downshift to accelerate.
Pinging or pre-ignition is bad.
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Rah7777777
Posted on Monday, April 14, 2008 - 04:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

min pings when its hot out and i get on her off the line. I run premium only too.
but if its cold out there is no problems!
but once it warms up, especially with my stop and go traffic and I twist it all the way back, she will ping as well. so I let off and want to cry :-( and try to run at a lower RPM to cool her off for a bit.
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Brianb
Posted on Monday, April 14, 2008 - 04:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If the noise is coming from the primary side, it could be the front sprocket loosening up. Only way to tell is to pull the cover.
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Azxb9r
Posted on Monday, April 14, 2008 - 10:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Sounds like it is pinging. Mine will ping intermittently under hard throttle between 3000 and 4500 rpm when the temp. gets up over about 85 degrees. Downshifting or rolling the throttle on a little lighter stops it. I have been meaning to check my timing just to be sure it is correct, but since it is so intermittent I haven't gotten around to it yet.
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Bad_karma
Posted on Tuesday, April 15, 2008 - 05:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ecmspy do some tuning after you verify your timing.
Joe
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Darth_buell
Posted on Wednesday, April 16, 2008 - 04:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Don,t know anything about tuning, Wouldn't know what to to or where to tweak. Are there any guides to this. I have ECM spy on my puter but still waitning on the cables.
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Bads1
Posted on Wednesday, April 16, 2008 - 04:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Are you possibly lugging the engine a bit??? If not check your primary chain tension. That can sometimes admit a rattle that can come and go.
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