"Second post on this topic. I
"Second post on this topic. I have 1989 50HP 3Cyl Mariner that gives a steady alarm at WOT. If I back off the trottle it will stop. I' ve replaced everything I think could cause this; impeller, pump, temp sensor several times. This engine doesn't have a thermostat or poppet valve. What do I do next?"
"Second post on this topic. I have 1989 50HP 3Cyl Mariner that gives a steady alarm at WOT. If I back off the trottle it will stop. I' ve replaced everything I think could cause this; impeller, pump, temp sensor several times. This engine doesn't have a thermostat or poppet valve. What do I do next?"