Guys have an issue about air and fuel mix, it seems that Im running rich on idle. I have a zr 400, just cleaned and synched the carbs and its idling ok at 1,300rpm. Pulls good at higher rpms also, but my man concern is at fuel mix at idle, think Im running rich on idle coz the whenever I am near my exhaust as in checking the tyres air pressure, I could smell strong fumes coming from the exhaust and also hurts nd irritates my eyes. any insights as to what am i experiencing now and the possible solutions. thanks a lot guys!