I have a 1995 Evinrude Intruder , 175hp. The last time I was out on the boat when I would take the boat out of idle it would sputter a little and shut down. If I would idle it higher and then put it into gear it would run. I also had a hard time getting on plane with the livewells full and my partner in the boat, that is the first time that has happened. The only thing that I have done different is I started to put the Sta-Bil ethanol treatment into the tank? Any suggestions?