I have a 150 V6 Blackmax 1992 it was just recently in shop. While in shop they modified the carburetors to run hotter (about 165? @ 3000 RPM).
I changed the water pump impeller right after that because they said the pressure was weak. The pressure guage registers about 3-5psi at idle and...
Yes... Oil sensor issue (I believe) (intermittent beep)
I replaced the float sensor and it still beeps, but if I short the sensor out (i.e. put in pigtail bypassing sensor and short to ground (motor)) the beeping stops.
I checked the new and old sensor by moving the float up and down on each...
