Dragged out the 2008 DF6 from the back of the shed for a run. Had to put some new fuel in as it was pretty dry in the tank. Crank, crank, crank ..... crank. Nothing. Changed settings on throttle and choke to all combinations. Still nothing. Spark plug looks good. There is fuel in the bulb that is in the fuel line. Can anyone give me a clue as to where to start? It has always started in the past after a few pulls even when idle for many months.