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Old May 26th, 2023, 05:41 PM   #3
dan151
ninjette.org member
 
Name: Dan
Location: USA
Join Date: May 2023

Motorcycle(s): 2012 Kawasaki Ninja 250R

Posts: 20
Quote:
Originally Posted by Triple Jim View Post
Welcome to the board, Dan! Have you seen these diagrams?

https://n4mwd.blogspot.com/2013/10/s...-passages.html
Thank you! I just disassembled the carbs and meticulously cleaned them following the diagrams you provided. I reset the float bowls to exactly 17mm and 2.5 turns out on the mixture screws.

I was able to ride a short distance but the bogging/stuttering and rich running condition from idle to around 3000 rpms persists. You can visible see a small amount of black exhaust fumes coming out of the exhaust. Once the bogging starts, the bike will eventually die out not matter the throttle position and the choke has no effect. Once restarted you can move again, but eventually the bogging returns.

Any suggestions where to troubleshoot next? Is it possible that ignition spark may be cutting out in these conditions? The battery that I replaced was completely dead when I got the bike and would not take a charge. Concerned that the previous owner may have caused damage with a reversed polarity jump start.
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