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Old June 28th, 2011, 12:29 PM   #20
DaBlue1
Long Time Rider
 
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Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010

Motorcycle(s): 2009 Kawasaki Ninja 250R

Posts: A lot.
Quote:
Originally Posted by Renx30 View Post
... Im not sold on the fact that its the gas. Since like i said it has 10km on it and only been riding a few times for less then 10mins each time. Its in garage full time and hasnt been in the sun...
It's just the gas vapors in the tank expanding. It will do it even out of the sun. Mine does it all the time in the garage. The gas cap has a tiny vent with a tiny diaphragm in it, so it opens and closes on the amount of vapor pressure. Of course if you're still not sold on that, there are few videos and threads about the same noise. It is very common and highly documented. If you doubt it is the tank, leave the gas cap open after it has been ridden and see if it makes the noise.

http://www.youtube.com/watch?v=wh9j-xa8gMc
http://www.youtube.com/watch?v=Wi-x_hyYYWU
http://www.youtube.com/watch?v=KTTb8...layer_embedded
http://www.youtube.com/watch?v=sIsMOF-9BfY
http://www.youtube.com/watch?v=p6m1yGVzq1A

http://www.kawiforums.com/ninja-250r...-pictures.html
http://www.ninjette.org/forums/showthread.php?t=37746
http://www.perthstreetbikes.com/foru...l-tank-101001/
http://www.ninja250forum.com/forum/i...p?topic=2721.0
http://www.250r.net/forum/showthread.php?t=770
http://www.newninja.com/forums/f97/w...oise-6151.html
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