I recently bought a 97 KDX 220. The guy had it sitting for about a year. I did some prep work to it pior to taking my first ride. When I did ride it the throttle stuck about 3 times. I went back and pulled the carb to check for dirt or gumming. I found some dirt in the bowl plug. I cleaned the carb real well and hit the trails, again the throttle stuck twice. Sorry if this is an old subject, but any suggestions? :debil: