It only took 3 hours after I posted signs offering a $100 reward before I got my moped back!!! As I suspected when it got stolen, the ignition switch is gone and the bike had been hotwired. The punks in question managed to drive it 60 MILES around town with the police [with whom a theft report had been filed] totally oblivious.
The housing for the speedomoter/ignition switch was broken off the handlebars at one point--but that is what God made J-B Weld for [or perhaps a kevlar epoxy]. One of the two pedals/pedal shaft is missing, and the other pedal is missing the bold that holds it on to its shaft.
Now for the problem--I've got the ignition wires spliced together [I'll add a kill switch into the circuit once I've got the bike running], but I can't get the bike to start. I am hopeful that it is just a badly flooded carb [the bike was laying on its side when it was found--and Lord knows how long it had been lying there]. If it is a flooded carb, it should start in an hour or two once it has had time to dry out.
If it still doesn't start, what is my next course of action [I admit total ignorance here]?