I came across your site and thought I would share with you that I just bought a black one about 3 weeks ago. It does take some adjustments at first but seems fine now. Had to align the front tires as they were way off, but now I am driving it to work every day (30 miles). If I run it at 60mph it does fine, but after about 25 minutes it starts to get hot. The temp gage never hits the red area, but it's been close. I am getting am air filter and exhaust for it in a couple weeks. I am also purchasing an endrigo racing head for it. It just feels like it needs a bit more power for me when trying to climb those hills at 55 or 60mph. I wasnt happy with my gas mileage at first, but maybe it will be better after a few more runs. Im changing the oil and water coolant this weekend. I should have done that when I bought it, because they say the Chinese fluids are cheap, and not nearly as good. Hopefilly some good coolant mix will keep the temperature down a lot better than what came with it.
 
   Only problem I really have is that it sometime stutters at about half throttle. I tuned the carburetor a little better and that helped out. It was running very lean. Funny part is that they have a metal restrction cap over the air/fuel mixture screw for emmisions reasons, and you have to drill out that cap in order to tune it.