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Thread: good idle?

  1. #1 Question good idle? 
    Join Date
    May 2007
    Location
    St-Q, N.B.
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    im strating to break in my new engin (27ccDDM).
    and the idle was off so I set it with the idle scew(big one hard to get).
    trun it up till engin wouldnt stall.
    had to screw it all the way.
    then i tough why not try the low needle.I turned idle scew all the way back and set the low speed till i got good idle again.
    then i strated think,this could be bad for engin if im runnig to lean.
    So the question is where do I put idle scew?middle,back or fully in?
    thanks for your help!

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  2. #2 Default  
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    Here's what I'd try. Set your low speed mixing screw at 1 1/4 turns, Turn in the Idle speed screw almost all the way. Start up the baja, try to let it idle. If if stall right away lean the low speed mixing screw a 1/16 of a turn and try again. If it's reving high richen the low speed mixing screw and try it again. When mine idles I have a bit of smoke in the exhaust. Once the mixture screw is set use the Idle speed screw to adjust the speed you prefer.

    FG Leopard
    FG Monster Beetle 4x4
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  3. #3 Default  
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    set it like you said and there is a bit of smoke coming out look good but the idle speed i dont now how fast.
    there is a spot where it turn fast and there a spot like very close and turn slow kinda pinks.
    in the middle it goes fast 10 sec then slow 10 seconde.
    should i put it slow or fast ( its not real fast just smoother the clutch is not close to engage).
    thanks.

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  4. #4 Default  
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    You don't want to set it too slow, so I'd set it like you said. Just a little closer to the faster side.

    FG Leopard
    FG Monster Beetle 4x4
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  5. #5 Default  
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    she puffing smoke and sounding great!
    Now should i let it run idle for half a thank shutting her down every 10 minutes to cool down or is there a better breaking procedure.
    i want this one to last longer then the last one.which by the way was runnig to lean i now that know.
    thanks for your help.

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  6. #6 Default  
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    I wouldn't break it in by idling. Go drive it just don't do long wide open runs for a tank or two. You're welcome anytime!

    FG Leopard
    FG Monster Beetle 4x4
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  7. #7 Default  
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    Feb 2007
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    I would richen up the top end some then you can run it almost as hard as you want to break it in. Good idea is to check the color of the spark plug every now and then, if its black you are running rich. But that will be ok for break in.

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