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  1. #1

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    Help needed to diagnose a locked up 2002 4 Tec 155HP

    I Just want to know with Plugs removed should I be able to turn motor over by turning the drive shaft? Because at first it moved maybe a 1/4 turn then stopped.


  2. #2
    R88ory RXP's Avatar
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    Feb 2008
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    Yes, but what are you using to turn the drive shaft??

    R88

  3. #3

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    It's pretty hard to turn by hand...
    Not like 2 stroke where you can turn it easy.

  4. #4

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    I used a small chain/strap wrench. The history on this ski is it wouldn't start. Ended up finding a lot of water getting into the cylinders. Finally ended up pulling the intake manifold to remove all the water. After that it cleared and I got it running. At that point I noticed milky oil and told my friend he needed to get the oil changed several times until cleared up. He failed to get this done over the winter and now this seems to be locking up. Don't know where to go from here short of a tear down. Any thoughts. Thanks

  5. #5
    Mothman's Avatar
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    Tear her down. If you don't, the bearings may fail during your first hour of riding.

  6. #6
    R88ory RXP's Avatar
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    That engine is going to need a full re-build!! I hope u can salvage the expensive bits!!!

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