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  1. #1

    Coming Soon Project conversion Kawasaki15F to Ultra 250X

    Hello guys
    In the nexts weeks we make a project with the Kawasaki 15f of my friend. We are going to install a Ultra 250x engine with the charger and intercooler but we need a help because some friend told me the is necesary make modification in the 15F hull to install the Ultra 250x exahust manifold. I know the some people make this modification and posts picture of his project. So, we need some of this picture for see the modification. If you can help us with that, we apreciate to much.
    Thanks

    PS You can send PM with picture and info....


  2. #2
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Its alot more work than you think it is, the manifolds on the 250x motor are much bigger than the 15f ones, i went thought this while getting my 15f project going because I was going to go this same route... http://www.greenhulk.net/forums/show...t=84908&page=2 Im not trying to scare you off but its just more work than you would expect.

    Sean

  3. #3
    Quote Originally Posted by smokeysevin View Post
    Its alot more work than you think it is, the manifolds on the 250x motor are much bigger than the 15f ones, i went thought this while getting my 15f project going because I was going to go this same route... http://www.greenhulk.net/forums/show...t=84908&page=2 Im not trying to scare you off but its just more work than you would expect.

    Sean
    YES, I know....Thanks. Just I try to found picture of similar projects

  4. #4
    Picture----Stock Kawasaki STX 15F
    Cooming Soon Kawasaki STX 250X Charger
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  5. #5
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    what are you doing as far as a pump?
    what mods are you going to do to the ultra motor?
    what else is planned for the build?
    what are you going to use for a fuel pump?

    Sean

  6. #6
    Quote Originally Posted by smokeysevin View Post
    what are you doing as far as a pump?
    what mods are you going to do to the ultra motor?
    what else is planned for the build?
    what are you going to use for a fuel pump?

    Sean

    I have all the ultra parts to install in the stx 15f hull.
    Fuel Pump
    Jet Pump
    ecu
    ecu cable
    all the parts

    For the moment we didn't made any modification in the motor just the conversion.

    How many mile we can get with the conversion?

  7. #7
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    which jet pump are you using? stock 250? skat trak? do not use the stock 15f pump it will break

    Sean

  8. #8
    Quote Originally Posted by smokeysevin View Post
    which jet pump are you using? stock 250? skat trak? do not use the stock 15f pump it will break

    Sean
    I have the ultra 250x pump just I need the pump shoe (Pump support) to install it.
    What happen with the 15f pump if I install it with the 250x charger set up?

    Gamaliel

  9. #9
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    it will blow out the veins on the pump, which will send your impeller out the back of the ski... you can use the 15f pump shoe but it needs to be modified...

    Sean

  10. #10
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    correct me if i am wrong but i beleive the big shoe from the Riva S/C kit for the 15F works in this application.....

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