I would like to know where I can find a free wiring diagram for a 1978 Mercury Outboard 115 Hp straight 6 boat motor?
I have a maintainance manual for this engine (I have the same one) with pages of wiring diagrams. What specific system/area are you interested in, I could scan in the page(s) and email them to you.
Mark
In the forward control I need to know what coloured wires connect to which contact in the back of the key switch. The letters on the back of the switch are B C A S M. can any one tell me
I need to no what color wires hook up on the motor side of the harness
Jeff Gee - Not sure if you are still looking for this but: B = Red, C= Yellow, A=Purple, S=Yellow-Red, and M=Black. Page A-40
Brian Webb - It would help to know your year and model, but the code for the engine harness should be: A=Red, B=Yellow, C=Gray, D=Black, E=Salmon(or orange), F=White, G=Brown.
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90 hp mercury oil injection disconnect and use premix
90 hp mercury outboard oil injection diconnect and use premix
How to wire motor
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