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Discussion Starter #1
Good morning!


Iam currently soaking and rebuilding the carburetors on a 2008 Ninja 250. While taking one of them apart I noticed a little rubber gasket. Iam not sure if it fell out of the pilot hole when I turned it upside down to get the pilot out or if it came from somewhere else. I can take a photo if that would help.


Thanks in advance!


Jason
 

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The pilot screws are assembled using a spring, tiny washer and oring. All need to be appropriately reassembed (using new orings)

Yes, these are common to both 250 and 500.
 

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Discussion Starter #4
Thank you for the feedback! I will attempt to post a photo. Please let me know for sure where it I should suppose to go.

Thank you. Any detailed photos for re assembly of a kehin carb for a 250 would be great
 

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Discussion Starter #5
Photo made it to the photo gallery. I have no clue how to connect it to this thread. Sorry
 

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Yes,

The oring from the gallery is (looks to be) a pilot oring,t tere sshould be one per carb. when reassembling slide the spring on the pilot needele then the washer then the oring, if they are not round like a doughnut then I strongly recomend getting new ones or you will still have starting issues. After inserting back into a clean card finger tighten silly then back it out 2.5 rotations unless someone else has info on the 250.
 

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Since nobody has mentioned it, get a service manual. It will help immeasurably with questions like this. Also, keep in mind that you will need to sync the carbs before you're completely finished.


Not that the information given out is bad information, just that a decent service manual will answer questions that you didn't even think to have.
 

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Factory service manual for every bike I own...some I don't!

The ninjette forum has carb posts, pics , trials and tribulations, fails and scores all over. Check it out.
 

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In case you haven't yet finished the rebuild, it's generally a good idea to just suck it up and replace all of those gaskets when you've got it all apart. Depending upon the current gaskets, upgrading to nitrile is minimal trouble and could save some hassle in the future. Especially if you're stuck using ethanol laden gasoline.



Depending upon the condition, you might be able to re-use them, but they're not that expensive and if you just do it now, you're putting off doing this again even further into the future.
 
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