I have a 9.9 4 stroke mariner 2000 model, it ran perfectly yesterday but not a peep today, fuel is getting to carb, no sparks! have put fingers in plug leads while turning over and not even a tingle, checked all connections and tried new plugs but not a single spark.

Is it coil or cdi most likely culprit? I'm guessing cdi as it's more expensive(Doh!) but any advice welcome.