I have a 2002 stingray 180LS. 3.0 Mercruiser. The boat just turned to 100 hours. When you turn the key, no noise, not even the click you might have if the solenoid was bad. It takes about five or six key turns then it fires up. I tightened all the connections and about to take to the marine mechanic to have a look at it. The problem is we only have one mechanic in the area and it will take several weeks to get the boat in. Any suggestions will be appreciated.