hey fellas i just bought an 03 tt-r125 and i'm having trouble with the carb. when the fuel is turned on it seems to just run straight through the carb and drain out onto the floor. what causes that? i've taken the carb apart and cleaned out the float bowl. and where is the idle adjustment screw? where the adjustment screw is located on normal carbs it seems like this one wasn't machined and threaded for a idle adjustment. im puzzled by this carb so can yall point me in the right direction??