I have a 1983 Champion Boat that worked fine last season . We put it away in November last . Took it out last week , charged the batteries , filled the tank and put in sea foam to help clean things up a bit . When I got to the lake . I put the boat in and tried to start it . Nothing . No Power at the key . It usually makes a click when you first turn on the key , and as you turn the key some more you engage the starter , and Vroom! Well that didn't happen .It has a Mercury 150 on it , and it runs beautifully . Everything has clean connections , and all the fuses are good . Tested with multimeter . Where do I go from here ? All help appreciated .