You seem to be very knowledgeable and versed in this, why don't you try the search function? I can tell you right now, you're not going to get much help with the attitude you're tossing around so loosely. Change your tone, change your demeanor and maybe even your screen name and maybe you might get more positive response from the very knowledgeable and experienced engine builders, mini bikers, etc... on this forum. Seriously, before you respond again with another bratty post, take a moment to realize you are on the ONLY mini bike site where you can get the help you need with more problems and questions than you can ever think that you might have in the future if you have any intentions of moving forward with the hobby you have embarked upon.