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  1. #1

    Join Date
    Sep 2007
    Location
    Philadelphia, Pennsylvania, United States
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    251

    Ultra 150 Carb question

    So, I picked up this Ultra pretty cheap. The only issue with it is the motor keeps filling up with fuel. The only thing I can think of is a stuck needle and Seat. So i took the carbs completely apart. Spent about 2 hours cleaning the crap out of them. when i was inspecting them after the cleaning, I noticed that on 1 of the 3 carbs looks like it is missing a piece.

    Under the needle and seat is the metal screen, under 2 of them there seems to be a "jet" looking piece that does not come out. It is NOT under the #1 cyl (pto end). On the parts breakdown it is not shown at all? I am confused. Any help would be appreciated.


    Also, I was told that it is not too difficult to change these over to Mikuni Carbs. I located the adapter plates from Watcon, but What carbs would I use? Was thinking GP1200 carbs? Or the 1200r carbs, but that would require 3 pulse lines if I am not mistaken?
    Mag side]


    Center


    PTO side


  2. #2
    cconigliaro's Avatar
    Join Date
    Oct 2011
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    Boca Raton, FL
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    Is this what you are looking for? It drops in the hole you are referencing.

  3. #3

    Join Date
    Sep 2007
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    Quote Originally Posted by cconigliaro View Post
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    Is this what you are looking for? It drops in the hole you are referencing.
    No. it is underneath the seat. I pulled the seats out and its under it.

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