"Hello, I have a 1988 Mercruis
"Hello, I have a 1988 Mercruiser 5.0 Liter engine. When I disengage the propeller, I can raise the RPM's to 4000+ No Problem. When there is a load on the engine and propeller is engaged I can cruise at 2000 RPM. When I get between 2500 to 4000 RPM, the engine...