I got a 1985 evinrude 70hp runs great but its over heating. Changed the thermostat and checked the head it seems fine. Does anyone know what could cause the overheating.
The head shows no signs of leakage, I was told something about the exhaust gas backing up in the manifold or something like that. Could that be a possibility.
you should have a strong (pee stream) tale tell. it only is an indicator the impeller is pumping water, if weak stream, you definitely need water pump service.
