HUSABERG FE 450 Repair Manual page 94

GENERAL INFORMATION ON CARBURETOR
WEAR
Engine vibrations make the throttle slide, jet needle and
main jet holder subject to increased wear. Wear leads to
malfunctioning of the carburetor (e.g. over enrichment).
These parts should be replaced after 200 operating
hours.
ADJUSTING THE MIXTURE CONTROL SCREW
The mixture control screw (1) is used to adjust the idle
mixture.
Turning the mixture control screw in a clockwise direction
will reduce the idle mixture, turning it in a counter-
clockwise direction will increase the idle mixture.
CHECKING THE FLOAT LEVEL (FLOAT HEIGHT)
To check the float level, dismount the carburetor and
remove the float chamber. Tilt the carburetor until the
float rests against the float needle valve without crushing
it.
The edge of the float should be parallel to the sealing
area of the float chamber in this position (see photo).
If the float level does not have the setpoint value, check
the float needle valve and replace if necessary.
If the float needle valve is OK you can adjust the float
height by bending the float lever (2).
Mount the float chamber and the carburetor and adjust
the idle.
FUEL SYSTEM
1
2
G
13