Found this following a link left by another poster
http://faq.ninja250.org/wiki/Is_ther...b_sync_tool%3F

Looks like it should work. I'll have to give it a try. Note: the website tries to access Google Gears when you go to it. I denied it access on my system on GP.

 

I tried to make one I found on the internet that was made out of loops of tube on a board. It was a disaster so I broke down and got a sync tool. Had I seen this I may have had better luck. Let us know how it works out.

 

is a 250 ninja a 4 cyl bike cause i cant figur out how that would work with all 4 carbs

 

On CBRs, F4 at least, one carb is a base and the other three are synched to it. So you would hook it up to the base, I believe it's the number one carb, and go to each of the other carbs and sync them.

 

From what I've read, this is true.

Also given the simplicty of the tool, adding an extra 2 bottles wouldn't be overly difficult.