Ayuh,..... On a cold motor, actuate the throttle to Wot, once, which sets the choke,....
With the throttle at 1/4 to 1/3rd, turn the key to start,....
When it lights, pull back the throttle to, say 1,000 rpms, 'n allow it to warm up,.....
Once the choke is "Set", power from the ignition...