Just purchased this motor. When cold cranks and runs at high speed. When slow down, dies and is hard to start back up. Have to use starter fluid and open warm up throttle. Ocassionally spits back at slow speed. Carburetors have plenty of gas in them, drained to check. At home with water hose hooked up, cranks and runs good, but at lake under power gives above problem. Appreciate any help. Thanks.
