most of the PEPBOYS styled crap comes with the carbs out of adjustment, the chain out of adjustment, the brakes out of adjustment… everything needs to be tweaked to make it run right. if you want a pocket bike buy one. if you want a street bike buy one. don’t piss money away on something that will be a money pit regardless. BTW, what are you trying to achieve with this? are you gonna race it? just cruise around the neighborhood? or do you want a street bike?