1987 Marathon Boat wiring diagram

Wrobs101

Recruit
Joined
Aug 20, 2018
Messages
4
Good Evening,

I recently acquired a 1987 21' Marathon Boat with a 4cyl 3.0 liter merc cruiser. Does anyone know where I can find a wiring diagram for the boat?

Tia
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,800
Welcome aboard

Boat manufacturers dont really publish that sort of thing as many times its not even documented ( as in the info doesnt exist), the wiring diagram for the motor and controls is in the manual for the motor

The rest of the boat is fairly generic.
 
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