Help with 1978 Johnson 85 HP

[srowland76]

I've got a 1978 Johnson 85 hp outboard thats kicking my a**! I apologize if this has been discussed already but I couldn't find it. I'm getting no spark in one of the 4 cylinders. I've change the power pack, coil pack, spark plug and wires, still nothing. Any ideas?

 

[OldOMC31]

Does this engine have 2 powerpacks and 4 coils? Have you tried swapping the original "good" powerpack and coil from the good side to the bad side and the issue stays with the no spark cylinder?

 

[jimmbo]

So about the only thing you haven't changed is the Timer Base and Sensor(under the Flywheel)?
Examine all the low voltage wires going to the Coil, for grounds and opens, the last being a bit more difficult

 

[timmyjane]

Might find this helpful if you haven’t tested