Hi there! Anyone knows if the crankshaft of a Ninja 250r EX250J - carburated is the same as the Ninja 250r fuel injected? Can I replace the crankshaft of a carburated Ninja 250r for a Fuel Injected Ninja250r? Thanks a lot!

Hi guys thanks for allowing me into the forum. I have recently purchased a 2012 ninja 250r for my son the learn on as I know how good these bikes are for learning on. I may have A few questions over time but thanks again quakka250

Any suggestions for a good 2008 Nija250 carburetor rebuild kit ?

I am working on a '12 EX250J that has a super bad bog right off of idle. If you snap the throttle the bike dies completely. If you gently baby the throttle off idle (idle is about 900 right now) it will bog between idle and about 2-3000. Once you get past 3000 rpm it picks up and seems fine...

Sent from Motorcycle.com Free App Hello new to the fourm, but was wondering if anyone knew a link to order a streach kit for a 2012 ninja 250 , or if anyone knew a fabrication process ? I've had my bike for about a year and haven't made and mods to it yet. And want to improve appearance as well...