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Was given an old Searay with a Johnson 70 on it. Looking for advice

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  • Was given an old Searay with a Johnson 70 on it. Looking for advice

    Good afternoon all. A few months ago I was given a 17 foot 66 Searay with Johnson 70 HP triple 2 stroke on it. Model number is 70ESL-74M. Am redoing the interior but that is for another post. My questions are, Do these engines have any form of charging for the starting battery or to power the lights, radio, and such? Are there any do or don't I should know about besides the normal 2 stroke stuff? I'm assuming it uses a 40:1 mix. Does that sound right? I've rebuilt the water pump and replaced what was left of the thermostat and tested. Engine runs great and once ran for a few moments fires right up. I need to fiddle with the choke to get it to fire on a cold start but for it's age that doesn't surprise me. Any thoughts on what to do there would be appreciated as well. My plan is to restore the entire boat to original so help finding the correct decals for the engine cover would be helpful as well. Thank you all in advance!

  • #2
    All 1970 model 70 HP have a flywheel alternator / battery charging system.-----Mix is 50:1.----Decals can be found online.

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    • #3
      Actually, it is a 1974. And yes it does have an alternator.

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      • #4
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        Meant to say----all 1970's model 70 HP----

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