Husqvarna SMR 450-R 2009 Manual De Uso Y Mantenimiento página 81

CARBURETTOR CHOKE
The starter knob, located on the left side of the carburetor, is
used to enrich the mixture during the engine start.
Pull out the knob to open the starter, and pull the lever up-
wards to close it.
The carburetor is equipped with two knobs:
1) BLACK KNOB: COLD start (°)
2) RED KNOB: WARM start (°)
(°)
See page 16
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