Re: 1984 Mercury 115 inline 6 only firing on one cylinder
which one it firing? think you could look up at wiring comming to voltage res , stator and trigger think you will fine rotten wires likly if not it's voltage at switch boxs. sorry it's unlikly for only one to firer. . If switch boxs are ok you will get voltage going to coils. alway have spark plugs grounded .
