Page 1 of 5 1 2 3 ... LastLast
Results 1 to 10 of 43
  1. #1

    2003 MSX 140 HO doesnt want to start

    I just bought my first jet ski its a 2003 Polaris MSX 140 HO,

    I am having a small issue with it, it wont start i replaced the spark plugs and the battery, and fresh gas,

    It will start with a little starting fluid but after i turn it off it wont start again with out the starting fluid, it seams to run great, i have been checking the forums but couldn't find anything,

    the things that i have check, the fuel pump turns on, i am getting spark, and the injectors are pulsing
    Last edited by K447; 06-07-2011 at 10:49 PM. Reason: Corrected model number to MSX 140 from MSX 150


  2. #2
    Kosh's Avatar
    Join Date
    Sep 2007
    Location
    Australia
    Posts
    1,483
    +1
    83
    Welcome ivan

    Interesting, need to start at the begining. Simple stuff first.
    Check your throttle cable an make sure it is has some freeplay and not actuating the throttle(in all steering positions)

  3. #3
    I check the cables and they have a little free play and its not binding with the steering...

  4. #4
    800AMSOIL4U's Avatar
    Join Date
    Aug 2006
    Location
    Morgan Hill, CA
    Posts
    5,024
    +1
    132
    Did you check your fuel pressure? You are starting it up in reverse correct?

  5. #5
    Really I never heard that, ill try it tomorrow after work....

  6. #6
    Tried to start it in reverse no luck ill try to get the fuel pump pressure next is there a way to test the injectors to see if they open all the way or how do the injectors work... by a crank sensor ?

  7. #7
    800AMSOIL4U's Avatar
    Join Date
    Aug 2006
    Location
    Morgan Hill, CA
    Posts
    5,024
    +1
    132
    If you start those engines up in forward they will rev to the moon. You are suppose to start them in reverse.

  8. #8
    I have started it in forward and it didn't rev up at all... it just idled... what kind of sensors are on it

  9. #9
    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
    Quote Originally Posted by 800AMSOIL4U View Post
    If you start those engines up in forward they will rev to the moon. You are suppose to start them in reverse.
    Out of the water you are supposed to always start the Weber turbo engine in Reverse, as sometimes it will increase RPM very rapidly. Reverse invokes an RPM limiter which keeps the out-of-water RPM to a reasonable level.

  10. #10
    What kind of damage can it cause I had the water hooked up

Page 1 of 5 1 2 3 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Starting issue 2003 msx 140 ho
    By mehoatx in forum MSX/Matrix
    Replies: 5
    Last Post: 04-05-2013, 01:28 PM
  2. Help... 2003 msx 140 ho problems
    By benton2k9 in forum MSX/Matrix
    Replies: 1
    Last Post: 07-28-2011, 12:29 PM
  3. 2003 MSX 140 HO -133 hours $1250 -Texas
    By Marineking in forum Polaris Skis
    Replies: 2
    Last Post: 06-08-2009, 11:04 PM
  4. 2003 MSX 140 HO w/ 83 Hours - Will Ship Anywhere
    By seatsR4toilets in forum Polaris Skis
    Replies: 4
    Last Post: 05-06-2009, 04:03 PM
  5. 2003 Msx 140 Ho?
    By DefJef in forum MSX/Matrix
    Replies: 5
    Last Post: 03-18-2008, 06:31 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
  •