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Type: Posts; User: DrChuck

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  1. Hello I've found the smoking gun. PTO cylinder...

    Hello I've found the smoking gun.

    PTO cylinder has a head gasket leak. Stuck a borescope in the spark plug hole. As you can see the clean cylinders are #1 & middle. The PTO cylinder has water...
  2. I have checked the red white wire and got 45v on...

    I have checked the red white wire and got 45v on land. Have not checked when the problem is happening.
    Removed the PTO plug and it does look wet. Didn't have a strong gas smell. I'm wondering if...
  3. took the ski on the lake tonight. A little brisk...

    took the ski on the lake tonight. A little brisk but bearable. Even went for a swim. Probably the last swim for New England weather.
    Pressure started at 28psi and under full throttle 25psi. Jet...
  4. I have swapped injectors and the ski ran...

    I have swapped injectors and the ski ran terrible. Put the injectors back in the correct location and ski ran great until warmed up.

    Spoke with Lakeside. He thinks I have a fuel issue. ...
  5. Yes I did swap spark plug wires with no success.

    Yes I did swap spark plug wires with no success.
  6. Also replaced the coil for PTO and middle...

    Also replaced the coil for PTO and middle cylinder. Tested it this weekend and same issue. Fired right up ran around the lake 2x (10ish min) Once engine warmed up couldn't give gas over mid...
  7. yes 28-30 psi as I work on the fuel lines the...

    yes 28-30 psi
    as I work on the fuel lines the hard ones get replaced.
    compression 130, 130, 128
  8. Update So I replaced the spark plugs with NGK...

    Update
    So I replaced the spark plugs with NGK PZFR6H. Got spark back to all cylinders. Ran it in the yard and everything worked. Took it to the lake it worked great for 3 laps around the lake full...
  9. Hello MSX140 fans, I did keep track of the...

    Hello MSX140 fans,

    I did keep track of the injectors but ty for the reminder for all the other MSX140 users.

    After swapping the injectors the same issue. Starts but stumbles upon throttle. ...
  10. Removed the PTO and middle injector. PTO looked...

    Removed the PTO and middle injector. PTO looked pretty clean. Middle was a bit dirty. Thoughts?

    Has anyone replaced the o-ring above the injector as part of maintenance? Looks like they use...
  11. OK I retested the injectors as you said to and...

    OK I retested the injectors as you said to and exactly as you said. Starts at 20V and jumps right to 45V once started.

    No fuel leak in the hull. Checked by driving around with no seat. (Very...
  12. Have good spark in all 3 cylinders

    Have good spark in all 3 cylinders
  13. 1. How are you measuring injector voltage on...

    1. How are you measuring injector voltage on white/red wire?
    I did a peak voltage measurement across the red/white & green( PTO cylinder) red/white & purple( middle cylinder) red/white & blue(...
  14. 2003 Polaris MSX140, excessive fuel consumption

    Hello
    Have a 2003 Polaris MSX140 with excessive fuel consumption. 170hrs on motor. Things I have tested. TPS test good, gas pressure is good, voltage to all 3 cylinder injectors is good. 20V. ...
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    The previous owner used the jet ski in salt...

    The previous owner used the jet ski in salt water. The anode did its job. The pump is in good condition but the anode is shot. I currently only use it in fresh. I found some good information at...
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    The anode is pretty bad. I have attached picture...

    The anode is pretty bad. I have attached picture to this post.
    Chuck
    357890357891
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    MSX 140 anode replacement???

    Does anyone have a suggestion for replacing a 2003 MSX 140 anode?
    Polaris part numbers 5630598 & 2200745 are unavailable. I run the MSX in fresh water only. Any help would be great....
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