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    need help, 1975 70hp evinrude loses spark

    i own a 1975 evinrude 70 horse, model number 70573e. the engine will fire right up and run, but only for about 30 minutes then it will die like if someone turned the key off. the motor will then turn but not start back up. tested the plugs and they werent sparking. replaced all three ignition...
  2. C

    1975 70hp Evinrude, wont stay running, please help!

    Recently bought a 17' Sea Star with a 1975 70hp evinrude motor on it. Refurbished the entire boat after being told the motor ran fine and i thought it did when i bought it and started it up. What the seller didnt mention was that it only ran for 30 minutes then cut out and wouldnt start back up...
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