hi i just got a kawasaki kx250f 2005 and popps alot on accel on decel .
i dont know how much hours it has on it but arranged the valve clearance and are now up to spec . it`s a stock bike. any suggestions? by the way what happens if the hot start isnt tight int the carb ? heard the bike wont work well and pops to and im new to 4 strokes :S