never had any problems until bought a new gas tank. Maybe a coincidence. today it quit and i thought the new tank was empty, it was close. Anyhow the other tank was full and the motor would start and idle but not rev up. My guess is fuel clogged. There is fuel at least to the screen filter, i checked. the bulb stays hard, it just seems like the gas isn't getting through. Anyone have a quick fix? Will draining the carb bowl solve the problem? Or do I need to clean the carb out real good, and how do i do that?