Results 1 to 10 of 10
  1. #1

    Join Date
    Aug 2010
    Location
    washington
    Posts
    6

    96 sl 780 limp mode

    Can any one tell me how to get this out of limp mode


  2. #2
    100 MILES OF HEAVEN AND I AM SMACK IN THE MIDDLE KEYZBUM's Avatar
    Join Date
    Apr 2007
    Location
    JUST NORTH OF CUBA-- FL,KEYS
    Posts
    2,556
    +1
    39
    Quote Originally Posted by kjb312000 View Post
    Can any one tell me how to get this out of limp mode
    Welcome aboard
    why is it in limp mode??
    fuel ,oil,overheat??
    have you opened up the electric box? got a multi meter???
    matt

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,591
    +1
    1,275
    Welcome

  4. #4

    Join Date
    Aug 2010
    Location
    washington
    Posts
    6

    limp mode

    My sl780 i believe is in limp mode but not sure here is the problem, it ran great for a day. Went back to lake next day and it ran good at low speeds but when you get on it it bogs down but if you feather the throttle it windes up but then looses power agian. it acts like its starving for fuel. I have checked the fuel pump and its pumping great. my fue gage works my oil level a is good. I have opend the electrical box and the small fuse was blown so i replaced but did nothing to the issue i am having I am ready to sink it any answers would be great. I have also ran sea foam thru it and it helped a little

  5. #5

    Join Date
    Aug 2010
    Location
    washington
    Posts
    6
    Hi thanks for the warm welcome, I have no overheat issues, full of fuel,oil any thing above 3500rpm it is starving for fuel

  6. #6
    Is it getting up to around 6500 RPM and then dropping? If that is the case you are probably running lean and overheating. Or are you not able to go over 3500 RPM because of limp mode. If you are in limp mode the MFD will blink red and display the problem.

    Open your electrical box and disconnect the grey wire to see if that cures it. If it does, you need to find out why you are in limp mode and fix it. Pulling the grey wire is not a fix.

  7. #7

    Join Date
    Aug 2010
    Location
    washington
    Posts
    6
    thanks I will try that today, I have heard that it may be my high speed jets are clogged. If so what are the high and low speed adjustments supposed to be

  8. #8
    If they are clogged then you need to rebuild the carbs. You should probably rebuild them if you havent already anyways. If you have Grey fuel lines replace those too.

    The stock adjustments are 5/8 turn for all low speed adjusters and the high speeds are 1 turn on the rear cylinder and 3/4 turn for the center and front.

  9. #9

    Join Date
    Aug 2010
    Location
    washington
    Posts
    6
    great thanks for the info, I cut the grey wire in the electrical box and the ski runs great. I can not figure why it was in limp mode, The fuel is full, oil is full and there is no overheating. My dash has no warnings on it either. Maybe the sensor is bad? what to do now

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,591
    +1
    1,275
    The 1996 SL 780 uses two LR modules. One is the normal LR-23 voltage regulator.

    The other module is the LR-54, which is only used to control the gray RPM limiter signal to the CDI. The LR-54 monitors the Pink (Low Fuel level) and Tan (engine HOT) signals. If either occurs, the LR-54 forwards the RPM limit signal to the CDI.

    It sounds like your LR-54 module has failed.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. SL 780 limp mode
    By martinv in forum Polaris Open Discussion
    Replies: 12
    Last Post: 07-21-2017, 12:51 AM
  2. input please. '96 slt 780 limp mode...
    By 19svt97 in forum Polaris How To & FAQs
    Replies: 5
    Last Post: 07-26-2008, 11:26 PM
  3. '96 SL 780 bouncing, enough is enough!
    By workaholic in forum Polaris PWC Performance
    Replies: 25
    Last Post: 09-09-2007, 11:26 AM
  4. Tow hook for a '96 SL 780
    By repoman in forum Polaris Open Discussion
    Replies: 1
    Last Post: 06-03-2007, 09:07 PM
  5. 96 sl 780 mag cylinder getting hot, pto and center are fine
    By gvnitup in forum Polaris Open Discussion
    Replies: 7
    Last Post: 05-06-2007, 09:24 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
  •