Hi, my uncle has a 20' Grady White Center console w/ a 150 yamaha outboard. He is trying to get it started. The motor cranks, he is getting gas to the carb, but when he try's to start it, 2 things happen. 1.) it won't fire 2.) He get's a buzzing noise at the dash like it's trying to tell him something. Anyone have any clues? Thanks!