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  1. #1
    blegan's Avatar
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    mikuni 38mm carb. pop off pressure

    Specs. say 10-18 p.s.i. pop off, I have 2 carbs that pop @ 12# & one that pops @ 14 p.s.i. Will that be o.k. or do they all need to be same pop off psi? I was changing springs to acheive desired pop off 2 carbs easy peasy japanesey, 1 carb I couldnt get to pop at any pressure. after goung through needle and seat 3-4 times, I finally found that the spring must have the dimple lined up w/spring. After that I was able to get it to pop @ 14, as shaky as I am tiny springs,& small parts make it challenging, enjoyable yes difficult at times.


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    That'll be fine. 12 across the board would be better, but it will work.

    You can also try to compress the 14 spring a bit to see if that will lower the #. OR you can also cut a tiny bit of the spring off to lower the tension. (I would only try this option if you have a spare spring)

  3. #3
    blegan's Avatar
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    Sprung

    Quote Originally Posted by xlint89 View Post
    That'll be fine. 12 across the board would be better, but it will work.

    You can also try to compress the 14 spring a bit to see if that will lower the #. OR you can also cut a tiny bit of the spring off to lower the tension. (I would only try this option if you have a spare spring)
    Im sure my O.C.D. will kick in today & I wont be able to stop,Im sure Ill try different spring, equal across board p.s.i pop off. xlnt 89,beerdart ,k447,bowsniper,thester to all I say thanks again, I know that one of you will usually come through with solid data.I appreciate it
    Brian

  4. #4
    Connecticut CrazyA's Avatar
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    You say you were a bit nervous and shaky.... is it possible you may have tweaked the arm that holds the spring? That would change the popoff as well.

  5. #5
    blegan's Avatar
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    Good Possability

    Quote Originally Posted by CrazyA View Post
    You say you were a bit nervous and shaky.... is it possible you may have tweaked the arm that holds the spring? That would change the popoff as well.
    Im going to go w/ a lighter spring in the 1 carb. If I cant get it to 12# I might have to manipulate the arm.
    Brian

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