Yea, the letters and numbers are causing confusion. In Japan, it seems that TW's engines are offered with more CC's. (225) So yes, this is a real TW kit which apparently is not offered in the USA (Bay Area Yamaha seems to have personal connections in Japan).
Yes, there is a kit starter kit offered in the USA, but it is for a Yamaha "XT" 225. As Tom proved, the internal parts are the same, but since the relationship between the engine and frame is a bit different the XT 225 kick arm will hit the frame when used on the TW 200/225. We had one member heat the "XT 225" arm and bent it to work, but said it was alot of work. Boy this kick starter issue from day one has created a lot of confusion for folks. Gerry