743 Temp Gauge Reading

[uffda]

Since the temp gauge on the 743 doesn't have any numbers on it tell how hot it actually is running, where should the needle be on the gauge for a 180 degree thermostat. Should it be in the middle of the "normal zone"? If the thermostat is 195 degree, would that put the needle into the "hot zone"

 

[foton]

the only suggestions I have is to at the machines operating temp. get a infered laser type temp gauge shine it on the bottom side of the thermostat housing and use that number to mark the gauge needle to that temp. or buy a 2 inch temp. gauge with the matching sending unit with the numbers shown on the face.