Honda GX610 Owner's Manual page 18

2. To start a cold engine, pull the choke knob out to the CLOSED position.
To restart a warm engine, leave the choke knob in the OPEN position.
Some engine applications use a remotely-mounted choke control rather
than the engine-mounted choke knob shown here.
CHOKE KNOB
3. Move the throttle lever away from the SLOW position, about i/3 of the way
toward the FAST position.
Some engine applications use a remotely-mounted throttle control rather
than the engine-mounted throttle lever shown here.
THROTTLE LEVER
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