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External
Since: Jun 29, 2003
Posts: 62
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(Msg. 1) Posted: Thu Jan 08, 2004 7:06 pm
Post subject: 98 zx-9r, howling noise around 4k, thottle closed
Archived from groups: alt>motorcycle>sportbike (more info?)
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| I've got a zx-9r with 12K miles on it. When riding it I noticed the
other day there's a howling noise coming from the bike when the rpm's
drop (engine braking) and the across the 4500 to 3500 rpm range...no
noise above it, no noise below it.
It didn't do this before.. any idea ?
Remove NO-SPAM from email address when replying
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>> Stay informed about: 98 zx-9r, howling noise around 4k, thottle closed |
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External
Since: Jul 22, 2003
Posts: 386
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(Msg. 2) Posted: Thu Jan 08, 2004 9:16 pm
Post subject: Re: 98 zx-9r, howling noise around 4k, thottle closed [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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on 1/8/04 5:06 PM, Rein wrote:
> I've got a zx-9r with 12K miles on it. When riding it I noticed the
> other day there's a howling noise coming from the bike when the rpm's
> drop (engine braking) and the across the 4500 to 3500 rpm range...no
> noise above it, no noise below it.
> It didn't do this before.. any idea ?
> Remove NO-SPAM from email address when replying
Where's the noise coming from? Wheels? Engine? Chain? Does it happen if
you're sitting still and just rev the engine, or is it only when you're
rolling? When it happens, does the noise go away if you pull the clutch in
and roll off the gas?
--
Jamin Kortegard
2002 YZF-R1
2003 WRX<!-- ~MESSAGE_AFTER~ --> |
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External
Since: Aug 09, 2003
Posts: 367
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(Msg. 3) Posted: Fri Jan 09, 2004 12:20 am
Post subject: Re: 98 zx-9r, howling noise around 4k, thottle closed [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Rein wrote:
> I've got a zx-9r with 12K miles on it. When riding it I noticed the
> other day there's a howling noise coming from the bike when the rpm's
> drop (engine braking) and the across the 4500 to 3500 rpm range...no
> noise above it, no noise below it.
> It didn't do this before.. any idea ?
> Remove NO-SPAM from email address when replying
Did you check for tiny wolves in the engine casing?
--
Greg Sumner
Le Inlaw Biker, Seattle WA<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: 98 zx-9r, howling noise around 4k, thottle closed |
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External
Since: Jun 29, 2003
Posts: 62
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(Msg. 4) Posted: Sat Jan 10, 2004 3:55 pm
Post subject: Re: 98 zx-9r, howling noise around 4k, thottle closed [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Thu, 08 Jan 2004 20:16:06 -0800, Jamin Kortegard
<jkortegard.DeleteThis@notmymail.com> wrote:
>on 1/8/04 5:06 PM, Rein wrote:
>
>> I've got a zx-9r with 12K miles on it. When riding it I noticed the
>> other day there's a howling noise coming from the bike when the rpm's
>> drop (engine braking) and the across the 4500 to 3500 rpm range...no
>> noise above it, no noise below it.
>> It didn't do this before.. any idea ?
>> Remove NO-SPAM from email address when replying
>
>Where's the noise coming from? Wheels? Engine? Chain? Does it happen if
Comes from engine I think. Have not tried it sitting still, will do it
and let you know.
>you're sitting still and just rev the engine, or is it only when you're
>rolling? When it happens, does the noise go away if you pull the clutch in
>and roll off the gas?
Remove NO-SPAM from email address when replying<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: 98 zx-9r, howling noise around 4k, thottle closed |
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External
Since: Nov 09, 2003
Posts: 5
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(Msg. 5) Posted: Mon Jan 12, 2004 11:30 pm
Post subject: Re: 98 zx-9r, howling noise around 4k, thottle closed [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Stuck pollution valves on top of the valve cover??
Just a stupid guess.
mark
"Rein" <rruiterNO-SPAM DeleteThis @NO-SPAMyahoo.com> wrote in message
news:fgvrvv83ai4k80ro3l59fo8hld5oh7pkub@4ax.com...
> I've got a zx-9r with 12K miles on it. When riding it I noticed the
> other day there's a howling noise coming from the bike when the rpm's
> drop (engine braking) and the across the 4500 to 3500 rpm range...no
> noise above it, no noise below it.
> It didn't do this before.. any idea ?
> Remove NO-SPAM from email address when replying<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: 98 zx-9r, howling noise around 4k, thottle closed |
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External
Since: Dec 28, 2003
Posts: 39
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(Msg. 6) Posted: Tue Jan 13, 2004 8:32 am
Post subject: Re: 98 zx-9r, howling noise around 4k, thottle closed [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Rein" <rruiterNO-SPAM DeleteThis @NO-SPAMyahoo.com> wrote in message
news:fgvrvv83ai4k80ro3l59fo8hld5oh7pkub@4ax.com...
> I've got a zx-9r with 12K miles on it. When riding it I noticed the
> other day there's a howling noise coming from the bike when the rpm's
> drop (engine braking) and the across the 4500 to 3500 rpm range...no
> noise above it, no noise below it.
> It didn't do this before.. any idea ?
Air box resonating maybe.
Inspect the air filter.<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: 98 zx-9r, howling noise around 4k, thottle closed |
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