i just purchased a 1978 70 johnny. bought it with out hearing it run as the guy i bought it from had the batt and tanks with the boat it came from. i got everything hooked up at home just to give it a crank, but the selonoid clicks but starter does nothing. connections are all good and clean and batt is charged. what should i be looking for and if it involves a volt meter, plz be specific, just starting to learn that piece of equipment. thanks, scott