Ok got everything back together went and rode last sun. When praticing starts my son was starting in 2nd gear and having to shift to 3rd as soon as he gets going, so he tried starting in 3rd and it started great and pulled hard. We had the head ported during rebuild, but that is the only thing we did different. Still has the stock gearing. Just wondering is it good to start in 3rd or change the gearing. Thanks!!