The engine needed a lot of maintenance. I replaced all the fuel lines and the three fuel filters. I cleaned out the fuel tank. Primed the fuel system. I replaced all the water coolant lines and flushed the engine and water tanks. Cleaned the air filter. Replaced the raw water (sea water) pump's impeller. Cleaned up the battery terminals. Cleaned the bilge. Still need to change the oil and filters for the transmission and engine. I can put that off for a few days. The engine is running great now. It starts instantly.