Hi.
Regarding the missing coolant issue, the Colombian fellows said it was a common situation among theirs RX3 version (dubbed "AKT TT 250 Adventour"): that would be originated by the relatively low boiling point of the factory provided coolant (plus a combination of hot climate and high altitude, I guess).
The local representative (AKT) issued a Service Note for their CST in order to replace it without cost:
http://www.moteroscolombia.com/foro/...rt=2280#153858
Regards.