made it to 10 hour break in after my rebuild.1989 90 hp johnson

[johnson89]

motor is running excellent....118-122 comp. on all cyl.....temp. at idle is 124-129.....seems to run a little cool at idle,above fast idle it is 88-95....slowly going back to 50-1 on oil....had motor up to 5400 rpm...2 people, 15 gal. gas..boat fully loaded for fishing....16ft bassboat.....is there anything else I should keep and eye on.got lots of help from forum during my rebuild

 

[emdsapmgr]

The engine will run it's warmest temps when idling in summer warm lakewater. 143-155 degrees. Cooler on the garden hose. Once you crack the throttle, or get the engine up on plane, the pressure relief valves will open in the thermostat housing-flooding the powerhead with extra cooling water. Not unusual for the temps to go down 20 degrees when up on plane or at high idle.