My 15 hp Johnson won't start when hot. Starts first pull after sitting all night long, then after running will not start. I noticed the lower plu is caked with gray carbon. I have replaced coils, rebuilt Carb and replaced fuel pump this year. Any help would be appreciated. thanks in advance
Just replaced the water pump, housing and all, still no help. I'm getting a mist but not the usaul spray I had before. I've tried to blow air back through and do get air both ways. Thanks in advance.
