hi everyone. new to the forum and new to boat ownership. i have a 2000 johnson 150 carburated. there are 3 bolts in the lower unit that access the oil in the lower unit case. 2 large regular blade screws 1 top and 1 bottom, and there is also a phillips (4 way?) in btween those 2. my question is as i add the fluid from the bottom hole is the LU full when it comes out the middle hole ( with the 4 way screw ) or must it be filled until it comes out the top hole, or is there a specific amount that goes in.
thanks for your help.