Results 1 to 7 of 7
  1. #1
    State of Confusion BartenderSmalley's Avatar
    Join Date
    Jul 2008
    Location
    Wellington, Florida
    Posts
    658

    96' SPX - Shutting Off at Full Throttle - Why??

    I have a 1996 with an XP engine in it - engine runs very strong and fairly consistent, but when I am running and crank up to full throttle, the ski bogs down heavily or even shuts off completely after a few seconds - almost like it's getting fuel starved.

    Any thoughts on why? I can't see this being plugs, since plugs would act up more at low throttle.

    Have recycled and treated the fuel and put in 93 octane.

    Have pulled out the small fuel screen and cleaned it - some debris, but not enough that I would think that to be the case. Is there another fuel filter - can't find one in line anywhere???

    Any thoughts??

    Thanks.


  2. #2
    flyin' the friendly skies airbornexp's Avatar
    Join Date
    Aug 2007
    Location
    Mahomet, Il. USA
    Posts
    6,004
    +1
    163
    have you ever rebuilt the carbs???? Id start there. there are screens there too that need to be cleaned.

  3. #3
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673
    Rebuild those carbs!!! Most all problems with the 2 strokes are carburetor related... buy rebuild kits for both & also replace the needle & seats with the proper gram springs! You may also want to rebuild the fuel pump as well... you should only have one on the front carb. Inspect or replace the jets as well as you may have clogged high speed jets... my quess is that you will also find alot of trash in the carb screens that are just on the other side of the needle and seat!

  4. #4
    State of Confusion BartenderSmalley's Avatar
    Join Date
    Jul 2008
    Location
    Wellington, Florida
    Posts
    658
    Quote Originally Posted by bigdaddyRXP View Post
    Rebuild those carbs!!! Most all problems with the 2 strokes are carburetor related... buy rebuild kits for both & also replace the needle & seats with the proper gram springs! You may also want to rebuild the fuel pump as well... you should only have one on the front carb. Inspect or replace the jets as well as you may have clogged high speed jets... my quess is that you will also find alot of trash in the carb screens that are just on the other side of the needle and seat!

    DAMN DAMN DAMN. It's always something. I just had all of that work done a year ago - but then the ski sat for about 6 months with NO usage. Since Feb I have been trying to get it out alot more so it's getting more use - but each time I take it out, there is something else small that needs to be fixed to really use it.

    So it's back to rebuilding again.

  5. #5

    Smile

    Todays biggest problem is fuel,or should I say old or bad fuel,3 months is max.that premium will last ,The only thing that hurts watercraft more than old fuel is the fuel treatments people add,I for one only use STABIL ,and it doesnt keep the fuel from loosing octane!!If you have a fuel injected ski lucas makes a good product that doesnt harm anything and cleans injectors.Also if your seadoo has grey fuel lines !!!CHANGE THEM OUT!!even if you rebuild carbs and clean screens the inside layer of grey seadoo line gets soft then plugs everything,You also need to remove fuel petcock and clean it,they plug also!!Just a hint from someone who knows >Marvin

  6. #6
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673
    Quote Originally Posted by BartenderSammy View Post
    DAMN DAMN DAMN. It's always something. I just had all of that work done a year ago - but then the ski sat for about 6 months with NO usage. Since Feb I have been trying to get it out alot more so it's getting more use - but each time I take it out, there is something else small that needs to be fixed to really use it.

    So it's back to rebuilding again.

    Dude... you live in Florida to! Get that thing out more often!!! Or you can always buy a 4tec as I did... lot less maintenance and you can't beat the fuel injection!!!! However I still love to ride my old 95XP 800!

  7. #7
    State of Confusion BartenderSmalley's Avatar
    Join Date
    Jul 2008
    Location
    Wellington, Florida
    Posts
    658
    Quote Originally Posted by bigdaddyRXP View Post
    Dude... you live in Florida to! Get that thing out more often!!! Or you can always buy a 4tec as I did... lot less maintenance and you can't beat the fuel injection!!!! However I still love to ride my old 95XP 800!
    LOL - thanks man. I actually JUST GOT the ski really running good. It sat for most of the year with various small problems before I learned how to wrench in it myself. Now I am pretty comfortable with ripping things off and working on it.

    I had already been told about the gray lines - planning on doing that this weekend.

    Also, I already have a 4-TEC as well - 2004 GTX/SC with a blown motor. Got it from a friend who blew the motor. i am rebuilding the ski to get it running again. Should be about 3-4 weeks.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 96 1100 triple runs at full throttle
    By bruno19 in forum Yamaha PWC Performance (2-stroke)
    Replies: 11
    Last Post: 05-22-2013, 07:41 PM
  2. 96 SLT 700 intermittantly stalls out at full throttle????
    By StanSutton in forum Polaris Open Discussion
    Replies: 9
    Last Post: 05-20-2013, 08:30 PM
  3. 96 SL700 bogs at full throttle
    By Nik33615 in forum Polaris Open Discussion
    Replies: 5
    Last Post: 07-30-2008, 01:30 AM
  4. Range of 250X at full throttle?
    By Socaloffshore in forum Kawasaki PWC Performance (4-stroke)
    Replies: 11
    Last Post: 07-11-2007, 10:29 PM
  5. HELP!! my 2004 rxp had low the RPM's at full throttle
    By rafyrxp in forum Sea Doo Sport Boats
    Replies: 1
    Last Post: 06-17-2006, 11:46 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
  •