1982 90hp Mercury Ignition wiring and firing order clarification......

Jaba_5923

Cadet
Joined
Jul 18, 2020
Messages
11
OK Gents I am almost ready to see if the ol girl will fire up this weekend and just want to clarify a few things......just want to be extra careful and get everything right
I traced out wiring and all seems pretty good so far

Serial #7191197

1. Cylinders are numbered 1 thru 6 top to bottom

2. Ignition Coils are 1 thru 6 top to bottom same as Cylinders

3. Spark plug wires go directly from ignition coils to their respective cylinders ie. coil 1 to cyl. 1, coil 2 to cyl. 2, coil 3 to cyl. 3 and so on

4. The trigger assembly and switch boxes are what are responsible for the firing order of 1-4-5-2-3-6 (not the positioning of plug wires)

I also had a question about the wiring from stator to switch boxes....in all diagrams I have found it shows blue-white and red-white going to upper switch box and red and blue going to lower switch box, all other wiring is the same but on my motor they are reversed, does that matter or is it fine considering the stator is just giving the switch boxes AC voltage to store in the capacitor

Thanks Again !!!!
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,937
Does not matter on stator..just make sure trigger wires with loom and coil wire with loom go on same switchbox
 
Top