My favorite is the Evirude Johnson v-4 from 1977 thru 1989.
It is a very simple motor easy to wrok on.
Readily avalable parts from the crank to gaskets and pistons and bearings.
Carburators, no computer, can get to all the spark plugs.
The 85 thru 140 use all the same basic parts (Crank rods and pistons block...)
This means the 85 & 115 motors are made with the 140hp components really stout.