The temp reads around 160 all the time and when I get the rpm's over 4000 it goes up 10 degrees or so and goes back down when I get off the throttle. Is this normal for this motor. I have a standard bravo drive with the standard water pickup.

Perfectly normal temps. Perfectly normal reaction to increase temp slightly at high speeds as long as it goes back down when you slow. If it starts taking longer to go down look at the impeller.

Ron

Mine run around 150 - 155, and go up to around 165 at WOT. Cool right back down and cruise speed. I've got nose cone pickups.