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    1971 Mercury 7.5 HP intermittent spark, phasemaker ignition

    I managed to solve the problem: Regapping the points wasn't enough, I cleaned them up with 500 grit sandpaper, now I get good spark on the correct plug
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    1971 Mercury 7.5 HP intermittent spark, phasemaker ignition

    Hello everybody, I adjusted the points, replaced the insulator blocks, replaced the coils and redid the whole wiring. I tried running the engine the other day and it only started and stayed running at WOT, anything less and it turned off. I noticed, that the spark plugs don't fire reliably...
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    Installing lanyard kill switch on 1971 Merc 7.5 HP with thunderbolt phase maker ignition

    Alright, thank you for your replies!
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    Installing lanyard kill switch on 1971 Merc 7.5 HP with thunderbolt phase maker ignition

    Hello, unfortunately I didn't find any information about this, only for the older Phelon ignitions. As the stator provides around 400V to the coils which passes through the points and kill switch to ground to fire, I am unsure if I can use a regular aftermarket lanyard type kill switch, as these...
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