When you get it together and are ready to start, I would put the front wheel against something to keep bike from taking off. With just a little gas it can do a wheelie right after you start it. Then, you could be dancing around with it, minibike on it's back wheel, lol's.
Happened to me more than once, to my son-n-law too. Full disclosure: I didn't have the governor hooked up, so maybe very safe with governor and screw turned in, IDK. I disconnected the governor because I couldn't get it to work very well. Didn't mess with it very much, just seemed easier to bypass. :shrug:
Good luck, you have been warned. :scared: