Can someone help a new greenhorn boat owner? Bought a 1969 Kiekhaufer Mercury Merc 650/ 65HP 4 cylinder. I know where the oil goes in the lower unit but I can't find where to put any oil in the motor (Upper unit) if it takes any. It's coming from somehwere because I've got oil leaking from the upper unit into the motor well and down the front of the lower unit. I 've been told it has to go in somewhere and have been told it doesn't take any because the gas/oil mix is 50:1
