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  1. #1
    I transcend race Hombre! TBone14's Avatar
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    NEW PROJECT - MSX 150 - Nervous

    Here is my new project - I think I got a good deal on it at $800, but took a little more risk than I normally do, in that, it didn't have a battery for me to compression test etc....worst case scenario, I would think I can part it for more than I paid?

    Here is the seller's story:
    He bought it under the assumption that the turbo was acting up. He pulled the engine and inspected the turbo, everything checked out fine. He reassembled the machine and went out for a test ride. He says it ran fine after starting it, then would limit speed to just above idle....he shut it down visually inspected everything, restarted, and same symptom, ran fine for a minute and then limited speed. So, he drove it up on to the trailer, pulled it out and parked it for the summer.

    I plan on winterizing and messing with it in the spring, so yesterday I pulled the hull drain plugs to drain the bottom of the hull and a shitload of oil came out (coffee colored, so it was mixed with water). Dipstick is not showing an oil level. I am afraid to even turn it over now, and will probably pull the engine out to inspect everything on the bench over the winter...hopefully the reservoir was leaking??

    Any way to winterize this thing (safely) without spending a crapload of time on her right now (my daughter is going to be born tomorrow ) Or, is pulling the engine my safest route at this point?
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  2. #2
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    conversion baby!!!!sell the parts off this one and GO BIG!!!!

  3. #3
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    Congrats on the little one and the MSX. I would get a battery in it and run your compression test. Use something longer then the dipstick (screwdriver) and get a look at the oil condition, if it looks normal,maybe try and start it so you have an idea if it even runs. If you decide to pull it for the bench,at least you'll have a idea on conditions and what to look for.

    Oil and oil levels
    In terms of oil levels these Weber MPE750 engines are quite different from most engines people are familiar with, and this leads to errors. The service and owners manuals don't really do the best in this regard, hence the recurring problems with oil levels on the Weber engines.

    Many owners worry about having too little oil in their engine. For these Weber motors, even a little bit too much oil causes problems.

    Also, the stock ECU fuel mapping is very rich and results in rapid degradation of the oil from gasoline contamination (via piston blowby). Frequent oil changes are highly recommended.

    There are only a couple of oils that are compatible with the Weber engine. Make sure you are using the correct oil, and have the correct amount in the engine.

    Oil level markings on the dipstick are incorrect.
    Too much oil in the tank causes excess oil to be pushed into engine air intake tract, where the oil contaminates sensors and reduces engine RPM and power.
    It can also clog up the entire intercooler
    How to correctly set the oil level for the Weber engine
    Dipstick level check - Alternate description


    Weber engine oil level check, Cold engine
    Verify that the watercraft is level.
    Run engine at idle speed for about 30 seconds. Stop engine.
    Unscrew dipstick, remove and wipe off dipstick.
    Place back in tank (do not screw down), then remove and read stick.
    Maintain the oil level at anywhere from just on the stick up to the Add Oil mark
    Any higher than this will be over filled.


    Check out these links:

    http://www.greenhulk.net/forums/show...-Change-Thread

    http://polarispwcknowledge.shorturl....10-and-msx-150

    http://www.greenhulk.net/forums/foru...132-MSX-Matrix

    PS, PM sent

  4. #4
    jackofalltrades's Avatar
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    Nice looking ski. I dont think you got hurt getting in to it for $800.

  5. #5
    I transcend race Hombre! TBone14's Avatar
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    Used longer screwdriver to check oil - dry as a bone - I spose I can still compression test

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by TxPro1200 View Post
    conversion baby!!!!sell the parts off this one and GO BIG!!!!
    X 2

    Those webers are very expensive from what I understand.....

    Congrats on the baby too.

  7. #7
    urugol's Avatar
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    You can't lose on this thing, you will get $800 on ebay for the turbo assembly if in working order alone. I agree with the other guys, this is a very juicy conversion project right here.

  8. #8
    I transcend race Hombre! TBone14's Avatar
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    Conversion as in matrix style? Im sure there are threads on here, but whats involved and what's the approximate cost

  9. #9
    Moderator beerdart's Avatar
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    4-Tec..

  10. #10
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    Beerdart did a MSX into a 4-tec conversion(as a few others have/or are), The Matrix started life as a MSX140, and as far as I've seen,mine is the only 150 converted so a Polaris 1200 can fit into it. The biggest hurdle was making the motor bed plate to fit the MSX 150 engine mounting points.

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