Suzuki DT25 Fuel Leaking out of carb

[tweeds]

I noticed some fuel dripping from the top carburetor. Can't really see where exactly as I'll need to remove the oil reservoir (and the weather is shocking) but it's out of a hole cast in the carb on the other side to the throttle. I can't tell if there's anything that screws into it, or if it's a vent.

Any thoughts?

Thanks

[tweeds]

Sorted.

The carb was left empty for a month or two, and I'm assuming the float stuck open so the bowl over filled.

Have filled the bowl with cleaner, then run the engine with a heavily concentrated sea foam mix, and now all is good.