A while ago I posted a note about my overheating problem.
2002 60 HP 4 stroke with 650 hours.
Recap is that it was overheating at anything over 4000 RPM, there was low water
pressure that was in the 2 PSI range after the thermostat opened.
The fix was a bad grommet at the base of the power head where the water tube
connects to the block.
Rick at Walcott Marine (Bonita Springs Fla) figured this one out.