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  1. #1
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    Question Ultra 150 Premix conversion

    So whats the best way to change to premixing gas.
    I am going to buy a 2000 Ultra 150 and want to do away with the automatic premix and do it myself.
    Is there any kits

    thanks


  2. #2
    btldigger's Avatar
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    There isnt a kit . You have to split the cases and plug the 2 check valves in the front and rear balancer cavities. Then you will also have to change the oil in the balancers every so often. The ultra has 5 outputs from the oil pump 2 for the balancers and 3 to the carbs. My opinion is to put new oil lines and clamps on it and dont bother converting it. Almost every oil related failure I have heard about on a ultra or stxr was from a cracked oil line or one fell off. I dont think I have ever read where someone had a oil pump fail. With that being said there are 2 guys here that have gone premix over the winter. They will probably chime in too and can tell you more about what they had to do. Oh and welcome to green hulk

  3. #3
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    Smile

    Thanks alot!!!!!!!!!!
    I think i will just put new lines and clamps on.
    Also i have heard that you should replace the pump bearings every 50 hours is there much to that?
    I just bought a 2000 Ultra 150 with 124 hours and compression at 120,120 and 118.
    anything else i should look at?

    Once again thanks man!!!!

  4. #4
    btldigger's Avatar
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    That covers it pretty well. You might want to check out the mods thread in my sig, there is a post in there about shimming the pump and several other things you may find usefull.

  5. #5
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    brought the ski home last week. compression ended up being 124 #1 120 #2 and #3 116. is that ok?
    i am going to rebuild jet pump and get new oil lines and clamps for the oil injector. is there a brand that is better than others (as far as oil lines go)
    Also where can i get the electronic version of the ski manual?

    Thanks

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