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1980 Mariner 50no spark on 1 amp 4

sailor

New member
" Got decent spark on 2 and 3,

" Got decent spark on 2 and 3, I believe enough to ignite the fuel.

Doesnt seem to be firing on 1 and 4. Brand new plugs. Coils seem to OHM good. Is this a switch box problem? How can I test the switch box?

I work on 2 & 4 stroke small engines all the time, but this is my first outboard. Any help is appreciated. "
 
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