Level
The 5 - 7 mm is, with horizontal carb (meaning, when carb is installed, you have to lift the frontwheel), the distance between fuel level inside float bowl and the edge of the connection surface of the bowl to the carb. And then, only when the engine has run a bit to stabilise the level. You can see the level inside the bowl by attaching a transparent hose to the drain of the bowl and opening the drain screw.
Bettter to measure in a different way: remove carb and bowl. Turn carb upside down. Measure between underside float and connecting surface to carb. To be 25 - 27 mm, or 26 - 28 mm depending on model. The XT is not very sensitive to this BTW.
Auke
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