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  1. R

    Triger wheel or switch box

    Ok I have a 85 h.p. 1974 mercury outboard with a thunderbolt ignition. It dose not get spark. I have replaced the wiring harness in the motor and the one going to the control box (wire rote). I did all the test in the book with no luck. I shorted out the wires on the switch box from the...
  2. R

    Need wiring diagram for a 1972 50 hp Johnson.

    I have a 50 hp Johnson 1972 with electric shift & no manual would like a wiring diagram.<br /><br /><br />Thanks
  3. R

    Need year on 50 hp Johnson

    I have a 50 hp Johnson with electric shift need to know year.<br /><br />Model # 50esl72c<br /><br />Serial # e3645245<br /><br />Thanks
  4. R

    74 mercury wiring Schematic

    I would like to find the wiring Schematic for a 1974 mercury outboard 85hp with thunderbolt ignition. I don’t have the serial number with me right now but I can get them if needed. Thanks :p
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