Homelite hand held leaf blower problem
I have a hand held Homelite leaf blower that has a problem that causes the RPM to go up to full speed then down to almost idle then starts the process all over again. While this is happening, air is blowing into the gas tank. This causes large bubbles in the tank and is probably causing the engine to slow down until the bubbles quit and it can suck gas to the carburator again. It starts easily and runs great for a few minutes before the problem starts. Recently the carburator and block came loose but that has been re-tightened and the blower worked great for about 15 minutes then the problem started all over. During the time it ran properly there was no sign of bubbles in the carburator. Any ideas what may be causing air to be blown back into the carburator will be appreciated.