85hp runs great across the lake for a short period of time the just loses power as if it is starving for fuel.Tried choking it when this happens with no results. Motor eventually dies but restarts easily and quickly, but when put in gear, it dies again. Have to sit and idle for a time, then motor will run fine for a time, then the cycle starts again. Just rebuilt the carbs.Is it possible for old fuel to do this? I have to try and burn it out, no where to dump it.<br />Thanks for any enlightment on this.