I remember reading a post that Thatsdax did about breakin. It read something like 10min on and 10 min off for the engine for the first 30miles and then something like 50% throttle (or low throttle) for the first 400-500miles. he also recommended never going full throttle down hills if you want to Also a 20:1 mixture during that time. I have a 50cc thatsdax kit and my bike will be up and running soon. If anyone remembers the post Im referring to please link. Also I would love everyones input on whats safe and what isn't. Do i really need to break it in for 4-5 hundred miles??? IDIOT EDIT for break-in procedures go here (didn't look around too well did I?): http://motorbicycling.com/f3/definitive-break-procedure-thread-3850.html (although its not really definitive yet) I would still like some tips for making the engine last.