I have a 20hp mercury that was running,then it killed and it will not start again.The only thing it does is back fire.I'm looking for advice as to what the problem could be.
I am tring to find out how to test a electronic switch box on a 25hp mercury.The problem i'm having,is that i'm not getting fire to either plug.This happened all at once,so i don't think it's the coils.:confused: