Roketa MC D-13 250 Bali

[scooter]

Hello. I just purchased one of these. I did a search on the forum and can't figure out which engine this thing has. Honda or Yamaha clone? Not sure of the differences between this and the 54 either. BHinch loves his 54 so I bought this. Anyone know? I'm trying to get my parts together to go through it when it get's here. Also looking for known problems to fix now before I get it on the road. I appreciate any assistance.