Hello all, I have a question as a new user to this forum.
I have a 1973 Merc 500 w/Thunderbolt Ignition (SER#3482166), which I believe is a 1973. I am looking at a Mercury 40HP w/Thunderbolt Ignition (SER#7048776) that I believe is a 1983.
I want to take the lower unit off the 40HP and put...