Checking The Float Level (Float Height) - KTM 250 SX-F 2006 Repair Manual

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Checking the float level (float height)

For this purpose, dismount the carburetor and remove the float
chamber. Hold the carburetor in a slanted position such that the float
will abut the float needle valve but not compress it.
In this position, the edge of the float should be parallel with the
float chamber sealing surface (see illustration).
If the float height does not correspond to the desired value, check the
float needle valve and, if necessary, replace it.
If the float needle valve is o.k., you can adjust the float height by
bending the float lever .
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Mount the float chamber, install the carburetor, and adjust the idle
speed.
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