RAD2GO Sunbird scooters info

I recently came into possession of 2 sunbird rad 2 go scooters. i was hoping to make one out of the two. i am going to need help trying to locate repair info. wiring diagrams/schematics are No. 1. can somebody point the direction to start to search for this info. the wiring on both bikes has been "studied" by various people and left more or less there but disconnected etc. an owners manual would help. who manufactures these bikes? I am definitely a newbie to this broadening field and hope i can tap the resources on this forum. thank you in advance for any assistance.
sincerely,
bsamot69