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Getting rid of surge?

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I have a 2002 VOR 530 sme with the Delorto 39mm Flatside. I have just had it rejetted and dyno'ed, though I don't have much trust in the place i took it.

On the dyno graph it show that the mixture is perfect however there is a noticable surge early in the rev range when accelerating and at constant throttle.

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the idle is generally ok although it does sometime cut out if the the throttle is close at traffic lights.

the surge occurs in the first 10% of the throttle then it is fine.

Also when you say increase the needle 1 clip what does that mean exactly?

thanks for your help

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ok,sounds as if the idle is may be lean as well.try opening the fuel screw a 1/2 turn as well.

when i say raise the needle 1 clip i mean lower the clip one position.

lowering the clip postion raises the needle.

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