Results 1 to 9 of 9
  1. #1

    12F Seems stuck in LIMP mode

    So a friend of mine goes out and tries to help a stuck boater while my friend was riding my 12F. WHACK!!!!

    Sucked up a rope that the boater left in the water and didn't warn us about.

    So I tow my friend back to the dock, we pull the sled out of the water, and proceeded to cut all the rope off of the impeller.

    Start it up, it starts fine, no debris, nothing blocking.

    However, the 12F won't go above something slightly above moving... like under 20mph at full throttle. It starts fine, runs fine...

    What the heck do I do now?

    Any thoughts and suggestions?

    TIA


  2. #2
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
    Join Date
    May 2008
    Location
    Houston
    Posts
    4,486
    +1
    320
    get a jet pump rebuild kit and possibly a new impeller

    Sean

  3. #3
    The problem is electronic, not physical, or so it seems. The impeller has no marks or damage, and their now seems to be far less throttle RPM available.

    I have 6 JetSkis, and have never had a problem like this when we hit rocks, sand, ropes, or anything else. Obviously, a dinged impeller would lower the top end, but not by 25-40 mph. In this case, the impeller looks pristine.

    Thanks for the thought though.

  4. #4
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
    Join Date
    May 2008
    Location
    Houston
    Posts
    4,486
    +1
    320
    I would check the impeller clearance just to be sure, I had a 900 jetpump that got dropped while being shipped and it bent the pump shaft and the prop would drag on the wear ring.

    what are the rpms?

    i doubt its electrical, thats not something that would be affected by the impeller

    check the compression you may have busted something internal

    Sean

  5. #5
    Pain is fear leaving your body.... rlovebk's Avatar
    Join Date
    Aug 2008
    Location
    So. Cal.
    Posts
    5,206
    +1
    511
    The forces on your 12F are much different than the forces on your older ski's. Same basic pump & shaft, but hella lot more power/torque.
    1. What were the rpms? I don't suggest starting ski anymore until problem found.
    2. Pull the pump and check it out.
    3. If pump is fine check compression.
    4. Hear any odd/strange noises?
    5. Check plugs.

    Keep us informed of what you find.
    Some later models have a limp mode. I don't know much about this or how to diagnose/re-set. Mine also has a code you can enter to limit r's. Never done it so don't know squat about it.
    Good luck.

  6. #6
    Pain is fear leaving your body.... rlovebk's Avatar
    Join Date
    Aug 2008
    Location
    So. Cal.
    Posts
    5,206
    +1
    511
    Nice pic on your posts there Smokey.
    That Rob Schneider?

  7. #7
    Take the time to smile sirbreaksalot's Avatar
    Join Date
    Jun 2007
    Location
    Brisvegas
    Posts
    4,166
    +1
    602
    Quote Originally Posted by Wink View Post
    The problem is electronic, not physical, or so it seems. The impeller has no marks or damage, and their now seems to be far less throttle RPM available.

    I have 6 JetSkis, and have never had a problem like this when we hit rocks, sand, ropes, or anything else. Obviously, a dinged impeller would lower the top end, but not by 25-40 mph. In this case, the impeller looks pristine.

    Thanks for the thought though.
    Back to basics

    How many revs can or will it do with this problem??????

    Cause if its doing full revs !! than its your pump/prop cavitating from the damage the sucked up rope caused

    if it wont rev fully then either its still your pump not allowing the prop to spin freely as mentioned or
    possibly engine related ( but doubt I it)

    if it was running fine just before the rope saga
    then you dont need the internet to tell you whats wrong

  8. #8
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    im with waz if you are asking the WWW. you said yourself it was fine until you sucked the rope and it goes full throttle your words, kinda points to the obvious doesn't it.



    Quote Originally Posted by sirbreaksalot View Post
    Back to basics

    How many revs can or will it do with this problem??????

    Cause if its doing full revs !! than its your pump/prop cavitating from the damage the sucked up rope caused

    if it wont rev fully then either its still your pump not allowing the prop to spin freely as mentioned or
    possibly engine related ( but doubt I it)

    if it was running fine just before the rope saga
    then you dont need the internet to tell you whats wrong

  9. #9
    halfassjack's Avatar
    Join Date
    May 2007
    Location
    Nicholasville, Ky.
    Posts
    549
    +1

    Quote Originally Posted by sirbreaksalot View Post
    Back to basics

    How many revs can or will it do with this problem??????

    Cause if its doing full revs !! than its your pump/prop cavitating from the damage the sucked up rope caused

    if it wont rev fully then either its still your pump not allowing the prop to spin freely as mentioned or
    possibly engine related ( but doubt I it)

    if it was running fine just before the rope saga
    then you dont need the internet to tell you whats wrong

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 96 slx 780 stuck in limp mode tryed everything
    By adamtonn in forum Polaris PWC Performance
    Replies: 4
    Last Post: 08-25-2014, 07:01 AM
  2. 12F in Limp Mode - Help !
    By Beancounter in forum Kawasaki PWC Performance (4-stroke)
    Replies: 12
    Last Post: 05-31-2014, 07:43 PM
  3. Stuck in Limp Mode? Already chk'd Polaris PWC knowledge & thread search
    By capocrimini in forum Polaris Open Discussion
    Replies: 10
    Last Post: 05-21-2012, 06:19 PM
  4. MSX 150 Stuck in Limp Mode
    By apdrt in forum MSX/Matrix
    Replies: 3
    Last Post: 04-14-2012, 11:10 AM
  5. 2001 virage txi in limp mode
    By andrewplease in forum Polaris Open Discussion
    Replies: 3
    Last Post: 07-12-2007, 07:00 PM

Posting Permissions

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