Have been running the new 250 HPDI engine for over a year with no problems. even ran lit ast week end. went to start up this morning and nothing...engine won't even turn over and no instruments...checked batteries all good, all other boat auxiliaries working fine...no blown fuses? the ignition is 5 years old? is this the problem? I also tried both postions on the battery selector switch...even even took it apart to check connections...strange?