It's normal for a little stuff to leak out of the front bearings on many 2-strokes, that's how the bearings get lubricated. But we are talking about just a little oil, and it shouldn't be noticeable while running.

However, what you're describing sounds like something else.

You got misted by something coming from the engine, while standing in front of the engine with the engine running? That's strange, since I'd expect the prop blast to blow anything coming out of the engine back.

If, on the other hand, you got misted while fueling, I'd say you have a pin-hole in a fuel line. The pressure from your fuel pump can make a nearly-invisible hole spreay out a little jet of fuel for a surprising distance. I sprayed myself in the face the other day this way. (good thing I was wearing sunglasses, and it wasn't much fuel at all, but it surprised me).

Leaking around the carb, of course, is a bad thing and will often cause poor running as the engine doesn't draw fuel like it should, and goes lean.

It's also possible that you somehow have a trashed front bearing (and maybe crankshaft-crankcase fit) that is causing the engine to actually spray fuel out of the front bearing. If this is going on, it would be time to get the engine looked in person by someone who knows engines, and it might be time to send it in for service or re-build it.