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  1. #1
    dcspankie33's Avatar
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    Unhappy 2004 MSX 140 Having starting issues

    My msx 140 just quit on me while on the river. And now it will not start.
    Here are the things I have done and tests I have done.

    First: I changed the fuel pump and reattached the fuel regulator with the cotter pin method. Replaced a broken fuel cap.

    Tests:
    -Fuel pressure while cranking is 37psi
    -Volts at the fuel injectors while cranking all are at about 20-21 volts
    -I have spark
    -The compression on all 3 cylinders are around 117-118
    -Battery is fully charged
    -The display comes on and shows the rpm bouncing around while cranking

    Is there anything else I should be checking for? Going nuts trying to get this machine on the water. Any help? Please!!


  2. #2
    dcspankie33's Avatar
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    How do I get the fuel pressure down?

  3. #3
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    Quote Originally Posted by dcspankie33 View Post
    How do I get the fuel pressure down?
    Does it have the kawi inline regulator?

  4. #4
    dcspankie33's Avatar
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    Not that I know of. The return line is split but I never took it apart.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by BryanP View Post
    Quote Originally Posted by dcspankie33 View Post
    How do I get the fuel pressure down?
    Does it have the kawi inline regulator?
    Quote Originally Posted by dcspankie33 View Post
    Not that I know of. The return line is split but I never took it apart.
    Why did you repair the fuel pump? Had the stock pressure regulator fallen off into the fuel pump?

    Post a photo of the return fuel line where it is split. My guess is that the Kawasaki inline regulator has been added.

  6. #6
    dcspankie33's Avatar
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    I lost fuel pressure and pulled the pump out and yes the regulator was in the bottom so I reattached with the cotter pin method you mentioned of. I decided to replace fuel pump since I was in there. I replaced the fuel pump from the Airtex E7029M that I saw from another post. I can send photo of the split return line when I get off of work. I can tell you that the split is has the rubber gas line touching each other.

  7. #7
    dcspankie33's Avatar
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    Here is the photo of the split return fuel line.Click image for larger version. 

Name:	photo.jpg 
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  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by dcspankie33 View Post
    Here is the photo of the split return fuel line.

    Click image for larger version. 

Name:	photo.jpg 
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    The fuel return hose has the inline black Schrader valve tee, per the photo.

    The fuel supply hose in the photo has a spliced hose connection. This is normal.

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by dcspankie33 View Post
    ... the regulator was in the bottom so I reattached with the cotter pin method you mentioned of.

    I decided to replace fuel pump since I was in there. I replaced the fuel pump from the Airtex E7029M that I saw from another post...
    Either the repaired stock regulator is not actually flowing fuel or the Airtex replacement fuel pump is pushing way more volume and pressure than the regulator can handle.

  10. #10
    dcspankie33's Avatar
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    I would have to look again but the Schrader valve is on the supply line and the split is on the return line.

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