ninjette.org - View Single Post - 2012 Ninja 250R Bogging/Sputtering On Take Off Running Rich

Bob KellyIII · June 14th, 2023, 11:11 AM

As close as I can see that SHOULD be fine.... I'm no expert on these carbs
by any means, but float level usually isn't super critical , they just can't be too high or you will get a flooding issue. I've ran very low fuel levels before in carbs and as long as the pilot and mains are covered they worked great so it doesn't have to be at the very top of the bowls....the problem comes when the carbs are mounted at an angle like on the Ninja if the fuel level is too low
then the angle will tilt the pilot jets out of the fuel when their installed...
so the fuel level does need to be fairly close on the Ninja !
....
for what it's worth.
I finally got my bike going good after a good carb cleaning.... but it took modification to do it it would not run right with stock jets and no modification.... it should have but it did not !
I had to put 3 shims under the jet needles change the main jets to 95's instead of 98's and I also changed the pilot jets from 38's to 40's.... so the air screws didn't have to be out so far they would fall out.
so far, it starts and runs extremally well , if not better than ever before.... the bike hauls !

....
Bob.......

June 14th, 2023, 11:11 AM	#40
Bob KellyIII Retired motorcycle Mc. Name: Robert Location: Weed, California. Join Date: Jul 2021 Motorcycle(s): 2012 Kawasaki Ninja 250R, 2021 CSC TT250, 1977 Triumph Bonneville 750cc,2001 Honda XR650L. Posts: A lot.	As close as I can see that SHOULD be fine.... I'm no expert on these carbs by any means, but float level usually isn't super critical , they just can't be too high or you will get a flooding issue. I've ran very low fuel levels before in carbs and as long as the pilot and mains are covered they worked great so it doesn't have to be at the very top of the bowls....the problem comes when the carbs are mounted at an angle like on the Ninja if the fuel level is too low then the angle will tilt the pilot jets out of the fuel when their installed... so the fuel level does need to be fairly close on the Ninja ! .... for what it's worth. I finally got my bike going good after a good carb cleaning.... but it took modification to do it it would not run right with stock jets and no modification.... it should have but it did not ! I had to put 3 shims under the jet needles change the main jets to 95's instead of 98's and I also changed the pilot jets from 38's to 40's.... so the air screws didn't have to be out so far they would fall out. so far, it starts and runs extremally well , if not better than ever before.... the bike hauls ! .... Bob....... __________________________________________________ Its too late when you've gone too far !