if you tilt the bike by putting it on the sidestand, and try to let it idle unattended...it really throws the carb out of level. this effects the carb float, and general operation. my jetting and adjustments are spot on, but the difference is noticeable. about 500rpm lower idle speed when bike is on the kickstand,as compared to when you hold the bike upright...or are sitting on it. try setting your idle for bare minimum, as the bike is leaning on the kickstand and fully warmed up.