Kyle. I don't know any more than I have stated already. You would stand as much chance as me of finding more on the internet. Your location is given as Colorida which seems to be in Portugal, but could just as easily be in the USA. If the latter is the case, then you are much closer than I am to better informed people regarding this engine.
The company "Green Sky Adventures" is based at Hawthorne in Florida and they are the agents for HKS 700E engines.
https://en.wikipedia.org/wiki/Green_Sky_Adventures
Good luck with your research and studies.