Hi there iboaters I need help here, i have a late 70s to early 80s 50 hp johnson that was running fine untill I let it sit for a good few months and now it's not starting anymore. I've try pulling the spark plug to check for spark so now it starts fine with the top spark plug remove, but as soon as I put in the top spark plug in it will turn but will not start. So far here's what i've gotten check. I don't think this motor has a kill switch, there's still spark in both plugs, theres fuel going into the carb, try taking off the bottom plug and only run the top plug but still wont start. Try switching plug wires still not working. So I've at the end of the road here does anyone have encounter anything like this.