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Old July 28th, 2012, 08:09 PM   #8
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 Monkeytofu View Post
.... After riding it a bit with the petcock set on the "OFF" position, I noticed the drop in RPM and stuttering of the bike that happens when it's in that so I switched it back to on. I drove around for about half a minute when my bike started to lose power and began to dump gas out of the overflow tube.

.... when it's set into off but as soon as I put it on the "on" setting it just dumps gas out. Any ideas on what it could be? Something is causing too much fuel to enter my carbs but I have no idea what it could be.

This only happened after I adjusted the valves, but I don't think that's the cause of it.
Turn the petcock off. Remove the gas line from the carb, then turn the petock to "ON", if gas flows without the assistance of a vacuum, then the petcock may be the problem.
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