• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.
  • ALL iboats Forum Members and Guests:
    To show our appreciation for your participation in the Forums, we're offering an exclusive Forums-only discount good for an additional 5% off your iboats.com order for a limited time.
    To redeem, simply call our Customer Service Team at 800-914-1123 (Open M-F, 9am - 8pm Eastern Time) and mention the Forums 5% off discount. Offer excludes engines, trolling motors, and electronics.

Announcement

Announcement Module
Collapse

We're excited to announce the launch of our NEW Fiberglass & Epoxy Boat Repair & Building section on iboats.com! See more details!

This new area was created specifically to meet the needs of those of you who participate in the iboats Boat Restoration, Building, and Hull Repair forum. To kick off the launch, we are giving away free product in every order over $100 as follows:

Spend $100-149: Get a free paint suit (Large only)
Spend $150-199: Get a free sandpaper finish pack & paint suit (Large only)
Spend $200-249: Get a free catalyst dispenser
Spend $250-299: Get a free Sufasolve hand wipes
Spend $300-349: Get a free Aqua Blue buffing compound (quart)
Spend $350-399: Get a free small tint kit
Spend $400+: Get a free Preval sprayer

To qualify for the free products, select any Fiberlay, Spectrum Fiberglass, System Three, or Gibco product.

Also, we have discounted our already low prices by another 5-15%. Stay tuned as we will be giving away 3 $100 iboats gift certificates from May to June to be used on the new fiberglass and epoxy products.

To view the new Fiberglass & Epoxy Boat Repair & Building, go to http://www.iboats.com/Boat-Paint-Repair-Maintenance-Gel-Coat-Cleaners-Carpet-Epoxy/dm/view_id.11
See more
See less

Ignition switch wiring Mercury

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • Ignition switch wiring Mercury

    Can anybody tell me the color code for wiring an ignition switch for a 1990 or so Mercury 90hp outboard? I am using a remote push-to-choke switch rather than the one in the shifter box. The one in the shifter box is missing so I am going with an aftermarket switch.
    I also need to know how to set A Teleflex tach dip switch for this engine and the wiring color code for the tach connection. Thanks for help, the end of the harness is out of the control box and I'm having trouble sorting out the connections. It does still have the short barrel plug that comes off the harness at the control box, (shifter) but I do not have the factory connector for it.
    Any help?
    drewp

    BTW- I need the engine end as well if possible.
    "Your results may vary"

    Thundercraft in Progress
    http://forums.iboats.com/showthread.php?t=287390

    Tri-hull Wiring
    http://forums.iboats.com/showthread.php?t=448376


  • #2
    Re: Ignition switch wiring Mercury

    Here is picture 1 of 2





    Tach is set for 12 pole - 6 pulse (a 12 pole alternator produces 6 pulses).

    The tach needs +12 volts, ground and the send signal from the harness (gray I think).

    Comment



    • #3
      Re: Ignition switch wiring Mercury

      Thanks Silvertip. Can I run all this off the extral barrel connector at the shifter end of the harness? (the one that comes off the shifter from the factory)
      Also, some of the connections at the engine end of the harness look like they are in the wrong place. I have checked continuity and resistence through the whole harness and everything is .5 ohm or less so, it is good. It just looks like they used some wires in the wrong place at the engine end. Do you know where these go?
      I have the start circuit worked out I think. I just need rectifier and ignition. Looks like everything is there, just in the wrong place. Everything on the switch box and the coils looks good,

      I hate to have to buy a new harness, the wire looks very clean in this one.

      drewp
      "Your results may vary"

      Thundercraft in Progress
      http://forums.iboats.com/showthread.php?t=287390

      Tri-hull Wiring
      http://forums.iboats.com/showthread.php?t=448376

      Comment

      Working...
      X