My 2007 kfx 90 it will start and turnover, but it will be at an idle and then I throttle and it will barely rev higher but still won't move? Any help? Thank! Btw, I think I cleaned the carburetor and everything, and I put starting fluid in it and it will rev high then sometimes turn off and stop.

 

so your jets are spotless? super clean? see daylight through them? i ask because you said you "think" you cleaned the carb? just don't spray carb cleaner it the jets, remove the jets and physically clean them.

 

When you put the Carb back together did you put it back right. Why i say that is the throttle easy to push and nothing happens. you need to make sure that the cable is through the spring and hooked the needle, and make sure that the needle is seated back correctly. if that does not work then i would look at getting a new carb and put it on.