I/O running temperature

[bombay]

I recently bought a 1982 V20, my first boat. It has a 170 hp Merc. that seems to run great. I notice that the temp. jumps to about 180 pretty quick then stays at about 200-210. Is this a normal temp or a little warm. I plan on changing the water pump as I don't know when the last one was put in, but am leary of running too hot in the mean time