Well I do not follow many scooter types anymore, so take this with a grain of salt. I did not know/realize there was a GY7 scooter. So I did a simple cut n paste of your title. What I found is your Bintelli, could be one of the best damned scooter producer web pages, I've run across.
I mean the pdf's are gold!
When compared to the scooter sites I've looked in the last 10 years or so.
http://bintelliscooters.com/150cc-bi...-fury-scooter/
The engine diagrams, and parts diagrams are great IMHO.
http://bintelliscooters.com/wp-conte...17/04/Fury.pdf
All your electrical parts labled, and shown, on ONE page!!
It may not be a full blown service manual, but DAMN, that is one of the nicest sources of information on a scooter type, Bintelli, and then to have piece part bolts sizes and what not, you should be able to keep her in tip top shape man. You are blessed in the scooter world. It's all there!