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Help Suzuki Across carb tuning

Discussion in 'Suzuki 250cc In-line 4's' started by laverdagraham, Oct 10, 2016.

  1. laverdagraham

    laverdagraham Active Member Premium Member

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    My Bike:
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    Bike now runs sweet. Idles as smooth as silk, and a quick test-ride around local streets was a success. Never having owned an Across before I'm not sure how the power delivery comes on, but there's not much in the way of low down power, and then comes on with a rush almost like a 2 stroke power band. Once it is registered and we can do some serious test riding, I think there are still some improvements to be had. Although valve shims seems to be a daunting job I think it might be worth the effort. As we have a donor bike anyway we might strike it lucky with spare shim sizes if needed.

    Graham
     
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  2. bradley1977

    bradley1977 Active Member

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    Yes nothing down low


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  3. bradley1977

    bradley1977 Active Member

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    Was a vacuum leak ?


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  4. laverdagraham

    laverdagraham Active Member Premium Member

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    Sure seems that way.
     
  5. bradley1977

    bradley1977 Active Member

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    Well done


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  6. Sven27

    Sven27 Member

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    I had a GSX-R400, sold it with 120k and the thing ran as smooth as the day I bought it, fresh synthetic with filter evry 5k and tappets every 20k....
     

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