Old post, im learning jetting 101, the pilot jet is the off idle culprit, go 1 step leaner, check those reed valves, hard starting is an indication. I bet by now you have a 250 or a 450, good luck if you dont...i got this bike running but it doesnt kick in until the thrid gear then she rips like crazy but bogs and slowly gets through forst and second i have no idea whats wrong with it. Any ideas?