TORO LawnMower - Fuel Leak
 

I have a recent Toro 6HP (B&S) Recycler Lawn Mower (push) and I thnk
the fuel tank is leaking.
It seems to be leaking from what looks like a drain or vent from the
rear (back side of the tank - top).(the drain looks more like a nipple
of some sort - plastic and part of the tank mould) I'm not sure if this
nipple like drain is supposed to have a tube attached or not (never
noticed)
Any ideas ??????