My boat wont start. HELP
I am sure that you checked this already, but it happened to a friend of mine that circumnavigated twice, so it''s seems worth mentioning. He could not figure out how to get the diesel to kick over though he tried and tried, then after an hour and after bleeding the fuel lines twice he realized that the fuel cut-off t-handle in the cockpit was still pulled up. simple fix. He pushed it down, gave it a crank and it turned right over.
Outside of that, one of the many fuel filters between the tank and the injectors could be totally plugged. If the batteries are up and the starter sounds like it usually does (not bogged down or stuck)your electrical stuff seems fine. Have someone look at the engine while you give it a start to make sure that the belts are turning when you crank it, That proves that the solenoid in the starter has contacted the flywheel in the engine and is actually turning the engine over.
Hope it is something simple and cheap!