Husqvarna 3120XP Manuel D'utilisation page 22

STARTING AND STOPPING
Push in the choke control as soon as the engine fires and
make repeated starting attempts. Immediately press and
release the throttle when the engine starts. That will
disengage the throttle latch.
As the chain brake is still activated the engine must return
to idling speed as soon as possible by disengaging the
throttel latch in order to avoid unnecessery wear on the
clutch assembly.
Pull the front hand guard towards the front handle. The
chain brake is now disengaged. Your saw is ready for use.
Stopping
Stop the engine by switching off the ignition. (Move the
ignition switch to stop position.)
22 – English