I have a mid 80's Evinrude Junior, 1 cylinder, 1.5 hp (Model EJRESE) which I recently acquired and tuned up to get running. Now that its running I want to make sure I don't burn it up as I did not service the lower unit/impeller yet. Does anyone know where the cooling water exit for this engine is? There are four holes midway up the shaft. Is that exhaust outlet, water outlet, both? Does the water exit below the waterline so that it is not visible. I'd prefer to use more than just the "2 second touch test" I've read about in the archives. Thanks in advance for any help.