142 posts · Joined 2011. #3 · Feb 9, 2013. I think the choke is not providing enough fuel. When the choke is engaged at 1/3, the bike will idle (cold) right around 1-1200 rpms. Turning it off or turning it on all the way kills the bike. Definitely not too rich. All Balls Racing Carb Rebuild Kits are a great way to keep your bike running at peak performance and include all necessary components to properly repa…. Read More. Fullscreen Zoom. $6569. Buy in monthly payments with Affirm on orders over $50. Learn more. In your detective work of finding your carburetors problem, consider the (needle valve or float valve) as your starting point. This needle valve meters your fuel entering the carburetor bowl. If it is defective, the bowl will either over flow or not allow enough fuel into the bowl. Some of our customers think it's a jetting problem. The 250R has a known-good reliability record and is built to last. There are a couple other Asian 250s in the sportbike class, but as the only Japanese 250 imported to the U.S., the Ninja 250R is a class act that’s in a class by itself. Related Reading 2009 250cc Streetbike Shootout 2008 Kawasaki Ninja 250R Review 2010 Bennche Megelli 250R Review 126 posts · Joined 2014. #5 · Sep 14, 2014. So I had a look in my manual which covers all years and it says the difference between the model years is that the 2008 on models has it going to the "T" connector I mentioned. Then the 1988 -2007 models it goes to the fuel valve. It's called the "fuel valve vacuum hose". XVt2.

ninja 250 carburetor problems