1990 SN no start with electronic igni. conversion

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  • hopatcongnautique
    • Aug 2006
    • 5



    1990 SN no start with electronic igni. conversion

    I recently converted my 90 Nautique to electronic ignition with the pcm kit that inboard marine sells. I bypassed the resistor and changed the coil as the description states. it started fine on day one (right up). after the boat sat for a week it would just crank. so i checked the battery voltage and saw it was a little low (11.9), charegd it up and it started right up. so now i think, "great it just a low voltage trigger thing...time to replace my 7 year old battery". I put a brand new battery in (confirmed voltage at 12.6 prior to install) go to start and it just cranks.

    its odd because, sometimes when i crank it and hold the ignition on start it makes no signals of firing...BUT if i release the key from start it will start? sounds like some sort of trigger issue to me...no time to go out and diagnoss what the issue is so i figured a post to see if anyone else has had this issue. i did do a search and found nothing similar

    spark confirmed at the coil also.

    also...if the boat wont start and i leave it sit with the engine box open for a few hours it will start....moisture effecting the ignition? the seal is in place on the dist. cap.

    thx
  • TRBenj
    1,000 Post Club Member
    • May 2005
    • 1681

    • NWCT


    #2
    RE: 1990 SN no start with electronic igni. conversion

    How is the timing?
    1990 Ski Nautique
    NWCT

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    • jos
      • Nov 2005
      • 154

      • Netherlands Boxtel


      #3
      RE: 1990 SN no start with electronic igni. conversion

      BUT if i release the key from start it will start?

      Your above quote, positive the starter switch in your dashboard.

      Had the same isseu on a holiday once. Happy it workt the left holiday days, with the trick, not turn the start key the full100%.

      Couldnt get an original switch. I replaced my dashboard key switch, with a contact key switch and a starter push button. Its easy basic electric.

      Succes

      Comment

      • hopatcongnautique
        • Aug 2006
        • 5



        #4
        RE: 1990 SN no start with electronic igni. conversion

        timing was OK...ill check to see if it slipped for whatever reason....didnt think of that.

        ill check the switch also...

        thanks guys

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