My son's trimmer started spewing fuel so he asked me to take a look at it. 1st thing I see is the 2 hoses coming out of the grommet on the tank have rotted and snapped off at the grommet. 2nd thing I see is that there is 3 holes in the grommet, but only 2 hoses & 2 nipples on the carb. Is this thing completely missing a 3rd hose & fitting ? Nothing appears to be snapped of anywhere on the carb or engine, but I can see right into the fuel tank through the 3rd hole in the grommet and cannot find anyplace on the head where a 3rd hose could have belonged. WTF Anyone have a pic or diagram of the hoses and routing ?