My bike came with electric start only ... and has also no shaft coming out of the gearbox to assemble a kick start.
But in TaoBao i have seen the engine with a kick start shaft.
Somewhere earlier in this report i wrote about the seat height, forgot the details..... anyway, the only adjustment is riding with .. or without seat. :-) There is NO adjustment for the height. Who knows, maybe they tape a sponge block on top???????????