I have a 40 HP evinirude and an auxillary 9 hp. Out on the lake and headed back in rough conditions and big motor failed. It died and would restart but acted like it was starving for gas and would sputter and die. No one around and i started the small motor just to get off the lake. Same thing would start but then sputter and die. Finally got it going but had to choke it all the way to dock as waves were coming in the boat. Very scary. With both motors acting up could it be bad gas . I just filled the 25 gallons tank 2 weeks ago and have had it out 3 times and everything was fine until today. If the fuel pump then what are the chances of both motors acting up. Any suggestions would be appreciated