Hey guys i was out at my local track last weekend riding for hours with no trouble. towards end of the day i was riding shifted up to 2nd gear and there was nothing there only first gear was working. noticed gear lever came loose tightened it up and 2nd gear started working but no others. it would select the gear but just revs like its in neutral anybody shed any light on this. iv tried a different gear lever im guessing its something inside engine.