That being a motor with the ubiquitous “Universal Magneto” from OMC….I have not heard that per se. Although there are a lot of issues that could mis-firing at low RPM.
Have you duplicated this condition in your motor? If such a thing is happening you could verify it by spinning the motor over with a drill and observe spark on both cylinders at various RPM’s.
Assuming you have done the full service of the ignition and mis-fire is occurring; I would swap components from one side to the other: Coils, spark plug wires, points , condensors. Also check for mag-plate “wobble”; a condition that can cause point gap to vary.
Not all coils are “created equal”. If you have access to a Merc-O-Tronic or Stevens or similar you could check each coil….but swapping them from side to side is also a good test.
PS: You might be better starting a new thread regarding this new topic.
