1986 Mariner 40HP EL
ID NO 422195 2 Cyl.
I have a 7 pin wiring harness.
I think I have a Yamaha made outboard.. but I don't know for sure.
How can you tell? My Clymers manual talks about a 40, a 40a, and a 40b.
But of course there is no reference to what the heck the difference is?