The engine is not very old. Its a Honda clone (H/F). I took the carb off yesterday, checked the float and needle, and found it to be very clean. Not sure if there is a float adjustment? The engine will start & run with the chock on. After letting the engine warm-up I try to take the chock off ond it dies. The spark plug is black with carbon which indicates to me it is flooding out. Probably because running with the chock closed. If I try to throttle up and open the chock it runs very bad untill it dies. It has been a few months since it was running good so I thought maybe bad gas. Drained the gas and replaced with new, no change. Not sure if it matters, but the engine will still run with the gas valve closed on the carberator??? Thanks for the help. These small engines are not my strong point.