Re: head temp 87 Evenrude 50 hp
Put the gun at the top of the head.You should read the temp there.I'm not sure about infrared,but if the thermostat is working,you'll see the temp fluctuate.
158 is too close to overheat,which is 163.Normal is back down around 145.
But if you hit 158 AND then go lower,it will work.
DHP