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  1. #1

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    1200R Carb rebuild/rejet pop off?

    In the process of rebuilding my 2000 1200r Carbs. I have the following:

    1.5 N/S
    95g spring
    125 Main
    110 Pilot
    chokes and accellerator pumps removed
    riva flame arrestors.
    premix 32:1

    My pop off seems high at 65? Is this okay? All three are the same. I have read some on pop off but nothing seems to directly answer my question.
    Thanks in advance.


  2. #2
    All hail the Chief! fullboogie's Avatar
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    Way too high. You want to aim at approx 45 psi. I run mine at 42.

    And on a side note, A+ for doing some reading before posting up a question. You're starting out right.

  3. #3

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    so what will happen if I run it that much higher? Just tough starts?

  4. #4
    Moderator OsideBill's Avatar
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    No they will open late, and potenialy cause a lean spot in the midrange. Are you sure you have the right springs? the new 115gr springs are called platinum and they look a lot like the dull silver 95's. If these came in your rebuild kits they are 115 gram springs.

  5. #5
    All hail the Chief! fullboogie's Avatar
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    As always, Bill is right on. Those numbers are way too high for 95g springs.

  6. #6

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    I didn't use the springs in the kit, I went to Dales Jet Sports and got the springs. I noticed my gauge was starting at 20 PSI so it is off... That should put them in the proper pressure but I will get a new gauge and re test.
    Thanks for you help!

  7. #7
    Its better to burn out than fade away christian79's Avatar
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    Well 65 less 20 is 45..... You should be close then. Can you calibrate your gauge by zeroing it out when not under pressure?

  8. #8

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    One last question, I have both Idle adjustment screws out and cant find a post on which one is high and which one is low? One is silver and one is gold. The silver one is longer and has 2 steps on it and the gold one only has one step. Which is the high and which is the low? I don't want to damage them re-installing them.

  9. #9
    Its better to burn out than fade away christian79's Avatar
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    Silver is LOW 100% SURE




    Quote Originally Posted by richte18 View Post
    One last question, I have both Idle adjustment screws out and cant find a post on which one is high and which one is low? One is silver and one is gold. The silver one is longer and has 2 steps on it and the gold one only has one step. Which is the high and which is the low? I don't want to damage them re-installing them.

  10. #10
    All hail the Chief! fullboogie's Avatar
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    The thinner one is the low, the fatter one is the high. And they're mixture screws, not idle screws.

    Good for you on getting a new gauge and retesting. Too many lazy MF's out there nowadays.

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