Mercury 200 series 20hp keikhaifer weak spark?

topfli8979

Cadet
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Jul 19, 2010
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Hello, new to me old outboard that has what I beleive is weak spark..... Point are cleaned and gapped, condensers tested to spec .3 uf. Coils show 6-7k ohms from primary to end of spark boot. Kill switch completely taken out of the wiring loop to remove from the equation..I have disassembled and reassembled probably the magneto probably 4 times, regapping and cleaning points. Spark plug test light does light up and visible with garage door closed, but not bright enough flash to see in daylight. Should I be seeing very bright flash from spark bulb or are these old systems generally low voltage.
 

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