I have a 92 130 yamaha. The lower unit had water and I pressure tested it to find out the prop seal was leaking. I removed the bearing carrier and was reading the manual last night. It mentioned a keyway. I did not see this when the carrier was removed. I looked on the floor today and inside the lower unit. Does this engine call for one and can the lower work without it. Also If I need one does anyone know the part number. Thanks...
