Here is a list of possible root causes - still not in any particulary order_. - Idle stop screw or eletronic idle level setting not adjusted correctly (probably not a big surprise.) - Throttle cable jammed so the throttle valves can not close. - Cable to cold start lever jammed so the throttle valves can not close.
On the Ninja 250, the overflow actually comes out of the top of the carbs, so I believe they have to be really freaking full for the overflow to spit gas out like it is. However, with my gas tank, I noticed that even in the ON position (rather than PRIME, as those are the only two options), my tank was leaking gas.
Check Details. Coastal Motorcycle Centre - EX250 (NINJA 250R) 2008 - Carburetor (1/2) Check Details. Ninja 250 Carburetor - Italian Motorcycle. Check Details. 2008 Kawasaki Ninja 250r Carburetor Rebuild Kit | Reviewmotors.co. Check Details. Kawasaki Ninja 250r Carburetor Diagram - Rock Wiring. Which is the best intake manifold carburetor boot 1986 - 2007 Ninja 250R Tech Talk: 19: April 18th, 2014 01:20 PM: Running rich? SabreValkyrn: 1986 - 2007 Ninja 250R Tech Talk: 4: November 15th, 2012 08:36 AM: Bike running rich: demp: 2008 - 2012 Ninja 250R Tech Talk: 49: September 9th, 2010 11:29 AM: Problems running, seems very rich? maxedpenny: 2008 - 2012 Ninja 250R Tech Talk: 7: June 30th Hello, I have a YCF Pilot f150 (it’s a pit bike) it came with a airbox an a Nibbi 19mm carb.. 19mm carb is really too small of a carb for the 150cc engine.. I purchased a Nibbi 26mm carb to get the power the 150cc engine has.. the Nibbi 26mm came with a 40 Pilot an 110 main an run like garbage an bogs, sometimes dies right off idle.. wy9z. 21 188 294 399 49 325 315 235 286