Reply To: no fire on top cyl 4hp 1971 evinrude

[Don]

Not really understanding your technical abbreviations…But, like Mumbles says, just cuz the wires seem to test OK doesn’t mean they aren’t shorted or partially open. The plug wire routing on these 4hp models is relatively tight, and the wires tend to get caught up in the cover latch. I guess I would swap the components one at a time, starting with the easiest swap, which is probably the condensers, then the coils, then the points…Ya better mark the pieces so you don’t get confused. The plug wires are relatively difficult to replace/swap…So, once all the other components have been ruled out, I would buy new wires and just replace them. Again, be very careful routing the wires near the cylinder head through the clamp, they get caught in the cover latch and get ruined easily..