a few years ago i had a 7 hp merc and with a squeeze ball for the fuel, had it in the garage for the winter ....yea it got cold in there and in the the spring that ball was super hard ,couldn't squeeze it......threw it out and bought another one. now i put my boat (40 hp 2 stroke) away for this winter with a cover and left the ball with the boat . you think this will happen every winter when putting the boat awy for winter. should i have left fuel in the ball? i ran the motor till it stalled.