I recently purchased a 2002 Bass tracker with a 50hp Mercury outboard. The boat will not turn over using the key, but will turn over with no problem jumping it on the solenoid. The gauges turn on when the key is turned on. I've checked all the fuses I can find and they all look fine. I've also checked for loose wires and checked out the ignition switch and can't find anything wrong. I confirmed the gear shifter is in neutral and the kill switch on the shifter is on. Any ideas on what could be wrong?