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BMW F800GS vibrations measurement F 800 GS

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Uploaded on Jun 12, 2009

My F800GS motorcycle has developed some annoying vibrations. Until I find an accelerometer or other good measurement device, I have used this method of observing water surface behavior at different RPM as a possible way of comparing different motorcycles.
In the video you should be able to observe if you pay attention, that after about 5500 RPMs, the water surface breaks and drops start "jumping" out of the bottle.
The same behavior can be observed if you look at the brake fluid reservoir. At the same RPMs, the fluid looks like if it was boiling.The same vibrations that are very annoying to ride with are the ones associated with this "boiling" behavior.

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