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Old 12-01-2012, 11:03 PM   #1
motormo OP
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Question noise comes up at around 65 mph

hello my bmw gs 1100 1998 is making a strange noise.
It happens when i speed up to 65 mph and it sounds like a vent , is coming from the front part of the bike , when i slow down it stops. The noise is steady meaning doesn't change intensity if i go faster it just comes on when i get to around 65 mph and then stops when i slow down.
I changed the fuel pump and the fuel filter but that wasn't it because the noise is still there.
Any suggestions?
Thank you.
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Old 12-02-2012, 05:00 AM   #2
jdub
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Maybe front wheel bearing(s) going bad? How many miles on the bike?
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Old 12-02-2012, 07:51 AM   #3
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Thanks for the replay, the bike has 68k mikes.
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Old 12-02-2012, 09:55 AM   #4
Ayrshire Bull
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ear plugs? they all do that
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Old 12-02-2012, 09:58 AM   #5
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Traditionally a bearing will vary its frequency with speed to a certain point, rather than being on light a light switch then back off. .02c
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Old 12-02-2012, 10:03 AM   #6
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I tend to agree a bearing problem would change the intensity of the noise with the change of speed . But unfortunately it is not a sound i think i can ignore with ear plugs.
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Old 12-02-2012, 10:37 AM   #7
catweasel67
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Any chance your tyres are worn? I had a noise, like a low pitch whine, that popped up each time each time I cornered...several people suggested it was the bearings but it turned out to be tyre wear.
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Old 12-02-2012, 10:47 AM   #8
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the tire are almost new very quiet i have street tires.
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Old 12-02-2012, 11:44 AM   #9
ElMartillo
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Speedometer?

Not sure what you mean by the noise "sounds like a vent", but you may try disconnecting the speedometer cable at the wheel. After doing so, if the noise is not present, it could be a loose speedo cable connection top or bottom, a worn or poorly lubricated speedo cable, or a speedometer in need of lube.
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Old 12-02-2012, 11:50 AM   #10
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thanks , i'm gonna check that out.
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Old 12-02-2012, 04:58 PM   #11
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i think that was it , i disconnected the cable and the noise is gone.
Thank you so much.
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Old 12-02-2012, 06:05 PM   #12
ElMartillo
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Happy to help.

Follow this link to see how my similar situation was resolved: http://advrider.com/forums/showthread.php?t=756825

My fix involved removing the speedometer to facilitate lubrication. I left it on the workbench overnight face-down.

Cheers!
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Old 12-02-2012, 06:21 PM   #13
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Thanks great info , i really appreciate your help!
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