Reply To: Mercury model 40

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January 8, 2024 at 7:46 pm #283794
JACQUES
Participant

    coil wise  the open  condition may be limited to the boot end connection.

     

    I would not  dump those  coils rightaway.    if the boot end is the problem you may be able to replace the boot by sniping the old ones off adding new boots/springs  if the HV  wire lenght permits  clipping half an inch off……. right behing the boot collar.

    see this OMC  ignition…trouble guide …not yours I know…. but the end plug problems  may be  same as your Merc boots on those suspected bad  coils.

    if you  retest the coil with the old boot snipped away you  may find the secondary resistance is no longer open. 🙂

     

    as to the 14 ga. wires  you installed I would not worry about ” voltage drop”   on 12 inches of wire.

    Joining AOMCI has priviledges 🙂