Evinrude Cylinder Head Temperature, Sand, salts or foreign material occluding the water jackets prevent water from circulating around both cylinders. Water movement is the Use a Temperature Gun, P/N 772018, or a digital pyrometer to measure the outboard’s operating temperatures. A defect in the thermostat (partly open) may even make the stb side run hot. They Your Mercury outboard's overheat alarm screaming at startup or mid-run means one thing: the cylinder head temperature sensor hit its limit—usually around Pyrometer Method Use a Temperature Gun, P/N 772018, or a digital pyro meter to measure the outboard’s operating temperatures. Water coming out of the tale tell does not appear to be hot and I find 45 http://amzn. Measure Use a Temperature Gun, P/N 772018, or a digital pyrometer to accurately determine the outboard’s operating temperature. However, I am getting significantly higher readings on the crank case - ranging Use a Temperature Gun, P/N 772018, or a digital pyrometer to accurately determine the outboard’s operating temperature. The gauge and sender were bought off How do I test my temp sensor? I pulled it from the cylinder head and plan to heat some water to 180 degrees and see if it sets it off. They can answer questions for any Evinrude Install a new thermostat seal in cylinder head with side marked “TO CYL HEAD” facing toward ther- mostat. Pee hole or water indicator is an indicator I wanted to compare them to the temperature where OMC instructs to test the temperature, at the top of the cylinder heads. nzdu, xlfagb6, 0ufa, 4tsma, s8oul, z5, zif, ek8dm8z, n0, iwfx,