i have an 03 rm250, full pro circuit exhaust and v force reeds is all i was told is done performance wise. i run amsoil interceptor 50:1 and it likes to smoke and occasionally loads up when im not in the higher rpms, i wouldnt say i beat my bike, but i definatly clean it out. it drips burnt oil from the connection point of the head pipe and silencer, called pro circuit and they said no clamp or anything is necessary, its just a slip fitting. would this be jetting, or lean the oil mixture out more, help would be appreciated, thanks!