Re: switching from a mercury 150 hp
Laddies, Isn't it more of a question of plug compatability? If the wiring harness' mate, won't it work?
I "mated" the wiring harness from my '77 Distributor ign 1500 to my '93 ADI ignition 135V6 w/o issue. The plugs and wiring colors were different, but the ignition switch was wired properly.
I presume he is changing boats as well? I do not know of too many boats that can handle 150HP, and will still perform with 35HP.