Even if you have a carb/ fueling issue or its flooded it will start on easy start, you spray a bit down the carb whilst cranking, the chokes on on that video so looks ok, if you crank it a while without it starting it will get flooded, you could also have a carb issue but we can sort that after if you do
Yeah, ideally with an assistant spraying as you crank, or spray a bit down the inlet, put your foot to the floor and crank it, be quick cos it evaporates quickly
Have you got fuel getting to the carb? If it's just running for a few secs if sounds like fuel starvation. Fuel filter blocked? The one in the carb can be blocked solid.
It took me two days to rebuild my pieburge (caught on fire),putting it on ,taking it off and I (supposedly) know what I am doing...
and its "on" all the time... That video shows it stops on something ,even if it comes off..... I did have problems with that side of the carbe... Look down both holds and move the same thing it should move two lower butterflys