I HAVE A 175 EVINRUDE.I HAD IT IN STORAGE FOR 2 YRS.I'VE DRAINED ALL THE FUEL AND CLEANED THE CARBS.MY PROBLEM IS I AM GETTING NO SPARK ON ANY OF THE PLUG WIRES.THE LAST TIME I HAD IT OUT IT WAS STALLING AND SOMETIMES WHEN I GAVE IT THROTTLE NOTHING WOULD HAPPEN,ALMOST LIKE A LITTLE SPITTING AND SPUTTERING LIKE IT WAS ONLG KICKING ON A FEW CYLINDERS. POSSIBLY EMM?