does anyone know what causes
does anyone know what causes a vapor mist to come out the water drain on 90 hp evinrude? Can this be crankcase pressure bypassing thermastats or maybe exhaust. Has happened a couple of times and stops when tapping on the thermostat housing. I just replaced the thermostats last year. The engine is hard to start in the water and I am courious if I am loosing crankcase pressure for the vro pulse line through the thermostats.
does anyone know what causes a vapor mist to come out the water drain on 90 hp evinrude? Can this be crankcase pressure bypassing thermastats or maybe exhaust. Has happened a couple of times and stops when tapping on the thermostat housing. I just replaced the thermostats last year. The engine is hard to start in the water and I am courious if I am loosing crankcase pressure for the vro pulse line through the thermostats.

