My 1972 50hp Evinrude (insert just buy a new motor coments here)  has no spark on the #2 cylinder.  I'm thinking points/condenser trouble.

It ran fine when first started this year,  but got harder to start until it would not start at all.

take the wire off of the plug, hold it near a piece of the engine that is metal, and crank it... look for a spark.



If there is a spark off of the wire, then you have a fouled plug.



If there is no spark, swap the wire with another wire, and check again.



If there is a spark now, where there was no spark before, then you have a bad wire.



If there is still no spark, then it is most likely the distro cap. Take the cap off, and take a #2 pencil, and use the eraser to clean off the contacts inside the distro cap.



If you had a problem with the points or condensor, none of the cylinders would fire.



This sounds like a fouled plug to me.

#1 Sparks just fine w/old & new plugs.  #2- no spark on any plug.

Plug wires are hard wired into coils.  this motor has points/condensors for each cylinder.

Motor has no dist. cap