I have a 70HP 1975 Johnson Outboard. After pulling plug wires one at a
time while it is runnign i found out that only one cyclinder is
actually firing. It appears that the two plugs not firing are wet, so
they should be getting fuel. Can it be two bad coils and how do i test
a coil? What is the best top down troubleshooting i should apply to
isolate the problem for a novice like myself? I replaced the
powerpack. Thanks