The engine is only 1 year old. It started the first time out this season, but was running rough. Since then the engine only runs with the choke on. Once the choke is lowered it spits and sputters and stalls. I changed the spark plugs and am now trying to put a carb cleaner through the motor. How long should it take to run through. I have put approx. 1/4 tank of fuel carb cleaner mix. Does it take a whole tank of gas and mixture to clean out or since it still is not running with when the choke is down should I assume it is another problem?
