Home › Forum › Ask A Member › 1976 Evinrude 9.9 ignition -lost a cylinder/troubleshooting › Re: 1976 Evinrude 9.9 ignition -lost a cylinder/troubleshooting
Doesn’t seem like the new coil was too far out of spec for the primary circuit, most ohm meters aren’t terribly accurate down at that range. I agree with Bill, most companies farm this stuff out to vendors and aren’t that concerned. Did you check the new/defective coil against one of the other new coils that is working OK? I don’t have any info on the OMC vs outside vendor coils, but I would not try to change the secondary/plug lead on the coil, these are not meant to be removed from the coil.
I agree with Bill again, many of these coils can look like crap, be all rusted, even have some cracks, but work just fine. Unfortunately, you can not judge the cracks without using the mercotronic probe test. I’d be interested in seeing what would happen if you reinstalled the new/defective/questionable coil on the other cylinder that was not having problems…..
Yeah, I know, this goes against what I agreed with in a different post, "never mess with success"! I guess this is why I make so many problems for myself….