• 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 Module
No announcement yet.

wiring diagram 86 Ski Supreme Sierra

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

  • wiring diagram 86 Ski Supreme Sierra

    I just bought an 1986 Ski Supreme Sierra. Boat needs help. Currently in re-upholstery mode but need electrical diagram to complete project. Called Ski Supreme and no help due to age. Engine looks decent but going through that as well. Any electrical info would help, especially interaction between dash and motor. Tach does not currently work. Thanks-

  • #2
    Re: wiring diagram 86 Ski Supreme Sierra

    I have same boat,looking to repair in Webster New york...need same info


    • #3
      Re: wiring diagram 86 Ski Supreme Sierra

      I have a 1989 Sierra Supreme. Information on these boat is tough to come by.
      Here is the PCM diag. The under dash info is the same as Correct Craft Ect. I'm located outside Buffalo, NY if you need to take a look.
      Attached Files


      • #4
        Re: wiring diagram 86 Ski Supreme Sierra


        This may help.

        What engines, props, preformance ect do you have?