90 HP 2-Stroke, Water Pressure?

[jeepndel]

What should my water pressure (PSI) be on my 1993 Merc 2-Stroke 90 horse outboard be?
I want to install a gauge. Boat did not come with one.

thanks, Del
www.delalbright.com

 

[johnnygjr]

You can turn your head to see if you have a telltale stream working and engine is equipped with a temp. sensor to let you know if she's running warm along with warning lights