1980 7.5, Coil Wiring Confusion

[gayle23]

I have a 1980 7.5 hp Mercury. I am confused regarding the position of the blue and green wires to the ignition coils. From Seloc, the green wires should be to cylinder no. 1 and the blue wires to cylinder no. 2. Clymer indicates green to coil no. 1 and blue to coil no. 2 (I think that is the same position).

Anyway, when I bought this motor the blue wires were to the coil for the top cylinder and the green to the bottom cylinder. If the top cylinder is no. 1 and the bottom no. 2 (which seems logical) I think my wires are reversed.

Please advise. Thank you.

 

[carholme]

Re: 1980 7.5, Coil Wiring Confusion

http://www.maxrules.com/mercwireindex.html

See under:

Merc 7.5 & 9.8 (1979-UP)..........Ignition Wiring Rope Start (IMAGE)
Merc 7.5 & 9.8 (1979-UP)..........Ignition Wiring Electric Start (IMAGE)

Gerry

 

[gayle23]

Re: 1980 7.5, Coil Wiring Confusion

Thanks for the diagram. Do the green wires from the switchbox attach to the starboard or port side of the engine coils? I can't quite tell this from the diagram. Thanks again for your help.

 

[Faztbullet]

Re: 1980 7.5, Coil Wiring Confusion

The grn(+) and grn/wht(-) attach to #1(top cylinder) coil and the blue(+) and wht (-) go to cylinder #2

 

[gayle23]

Re: 1980 7.5, Coil Wiring Confusion

Thank you so much.