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  1. #1
    alex29573's Avatar
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    loading up on idle

    i have a carbed 1200r that pisses me off because it loads up when I dont touch the throttle for about 4 minutes (i just let it idle)...

    the low needle screws were at 1.5 turns so i put them at 1 turn and it still did the same thing but not as bad... (after idling for a while i would hit it and it would clear up a little faster)

    so then i put the screws at 0 turns and it still does it but it probably takes about 5 minutes to load up...

    how does it idle if i have the low screws closed all the way?


  2. #2
    800AMSOIL4U's Avatar
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    What ratio are you running it at?

  3. #3
    alex29573's Avatar
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    3 ouinces per gallon - should equal 42:1
    gas is 93 octane

  4. #4
    Moderator OsideBill's Avatar
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    what is your jetting and what flame arrestor are you running?

  5. #5
    alex29573's Avatar
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    prok flame arrestors
    125 low jet
    150 high jet
    popoff is 25 psi

    Carbs are bored, choke removed, acc pump removed...(that is the only way the ski runs!)
    Last edited by alex29573; 05-10-2008 at 02:12 PM.

  6. #6
    Moderator OsideBill's Avatar
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    Quote Originally Posted by alex sanjenis View Post
    prok flame arrestors
    125 low jet
    150 high jet

    Carbs are bored, choke removed, acc pump removed...(that is the only way the ski runs!)
    Bored how? got pictures? Lows seem huge to me.

  7. #7
    Moderator OsideBill's Avatar
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    Bored carbs 1st two pictures are bored to 48mm and Novi atomizers installed the next two are 44 and 48mm blackjacks art had theses at 110 150 to start with the others I ran at 115 140
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  8. #8
    alex29573's Avatar
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    theyre bored but the butterfly is still the same size. i really cant tell you what mm they are bored to - i bought the ski like that..

    the low jet is a little bit to big because when i cruise at 1/4 throttle it gets a litttle rich. thats another problem though because its hard to tell what 1/4 throttle is.

    at "1/4" throttle i might be going ~30mph and it wont load up. but a hair more acceleration and it will jump to 50mph and not load up. however if i do a hair less acceleratoin it will drop to about 18mph and then load up...

    its kinda hard to see EXACTLY where 1/4 is at

  9. #9
    alex29573's Avatar
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    im just wondering where the heck is the motor getting gas from if i have all the screws closed! and it still gets enough gas to eventually load up..

  10. #10
    the circuit doesn't work that way it doesn't shut completely down! if u stuck a plug in the jet it would

    look at page 6 in the manual Oside gave u you can see the circuit
    Last edited by ZMANN; 05-10-2008 at 10:08 AM.

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