I'd like to introduce myself. I'm a gearhead but have always stuck with 4 wheels prior to the purchase of a 1979 P200e. I love the look of these scooters, and I really bought it for my wife's upcoming birthday. She has been asking for a Vespa, and like me, usually likes the older stuff.
It appeared to be a solid runner, started right up with a kick before purchase. I got it home in the back of my truck, and went to start a few days later and its a no-go. I turned the key, flipped the switch to on, opened fuel valve to straight ahead position, choked, and kicked. No start.
I filled up the oil (well, overfilled and cleaned up) and put more gas in (but there was some in there). I changed the plug with a 0.6 mm gapped Champion equivalent of the B7ES that wasn't immediately available. No start. I put a timing light on the plug wire and seem to be getting spark, though it isn't solid. I don't know how much to expect from a kick start.
It seems to flood, with fuel misting out of the exhaust onto the floor. I have tried starting with full choke, some choke, and no choke. I have tried no throttle, some throttle, and full throttle. The bike has been in neutral and freely rolls during each attempt.
On the kick, sometimes there is enough resistance that I can't kick. Pumping the kick lever a couple times frees things up and then I can give a full kick. This cycle repeats. Presumably, it doesn't like to kick at certain piston positions with a 1-popper, but maybe something is wrong there.
I'd love to hear next steps from the pros.