I know that my rappy needs a rebuild but I have got a few questions. First of all, what is a good cam chain? Is a wiseco chain better than a stock one? Second, would there be much difference between 9.9:1 and 11:1 pistons? Third, what do you think about used pistons? You can find some slightly used pistons for much cheaper but that doesnt seem like a good idea to me. And last, what are my options for the decomp dealio? I would like to keep the decomp but who makes better pins or whatever you need? I know bigdaddy does but it sounds like you cant get a hold of him. Sorry for all the questions but I have never rebuilt a 4-stroke.