Results 1 to 3 of 3
  1. #1

    Question 96 SL 780 - MFD Tech Info and CDI Testing Request

    I have a 96 SL 780 that I believe has 2 issues:
    1. My rpm are limited. I think the CDI box inside the electrical box is bad. I would like to see if someone in/near ohio would be willing to try the unit in a known working ski to confirm that the eletronic unit is bad.
    2. Iím on my 3rd MFD. Last one was purchased thru E-bay and had marginal clarity on the screen. After one day, it was dead. Does anyone have detailed information about the signals sent to the MFD? I would like to build a replacement using arduino components. I would be happy to post the plans and programs (without warranty) on the site once Iíve made a working unit.

  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canada
    Lots of MFD technical info can be found via my signature links. Most of the electrical signals are fairly simple. The fuel and oil level sensors need a low voltage, low current power source and a sensor to read the current flow (fuel level sender is variable resistance).

    The tricky aspect would be speedometer. Factory MFD uses water/air pressure transducer supplied via thin tube from the speed pitot under the hull. You may find it easier to just use a small GPS unit.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Cleveland OH
    Where in Ohio are you?

    There are at least 2 of us in the NE area that might be willing to help with the testing of the CDI

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 1997 Polaris SLT 780 "Need MFD!" and any other info
    By Sonix in forum Polaris Open Discussion
    Replies: 16
    Last Post: 07-16-2015, 04:27 PM
  2. Replies: 8
    Last Post: 05-11-2015, 10:58 AM
  3. Polaris 780 SLX 1996 - testing CDI
    By daddio101 in forum Polaris How To & FAQs
    Replies: 7
    Last Post: 06-30-2013, 01:41 PM
  4. WTB 94 polaris sl 750 mfd. i want to buy a mfd and cdi box
    By srt8charger in forum Polaris Classifieds
    Replies: 8
    Last Post: 06-24-2012, 02:11 PM
  5. MFD Help Request
    By christian79 in forum Polaris Open Discussion
    Replies: 0
    Last Post: 05-23-2008, 01:20 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts