Start off with the gas filter...its on upside down...Then replace that crappy, Chinese, Z4C spark plug with something that actually works properly and consistently like an NGK-BR6HS spark plug from your local autoparts store...You also have a problem with the cover to the magneto case, it looks like it is tearing itself open from the inside out in the center of the cover pushing outwards, that can't be good...I have old can openers that can't do that anymore...lol.
I also noticed the choke lever in the full up position which should be full choke "on" postion, yet the hole is unobstructed when it should be totally obstructed when the lever is in the up position.
That lever should be in the full down position for that choke to be totally open in the off postion like the pic shows...This tells me that your choke is not even working because of the lever not actuating the choke mechanism properly...No wonder your having problems starting if you do not even have a properly working choke to start with.
And YES the front motor mount IS an issue...Without that being firmly mounted in place, everything else is going to snap, crackle, and pop like a bowl full of Rice Krispies and milk resulting in a catastrophic failure, and duct tape maybe the handymans best friend but is definitely not a suitable gas tank mounting device...lol.
And this is just a starting point from what I see in the pics...Im sure that others will add their observations to this too.