I have an E-tec 75 with a speedometer on the motor and trying to figure out how to winterize it. The manual says to disconnect the tube at the top and blow 20-25 psi of air through it to blow out any water. The problem is that I have no idea what they are talking about when they say 'at the top'. I thought maybe they meant at the gauge at the console but have no clue. There doesn't seem to be a junction in the tube besides the ziptie on it when it goes in the motor by the lower unit. Can anyone enlighten me?