Ummm, i think it's a bit more than that and typically indicative about these 2-stroke engines with a few thousand miles on them.
My engine leaks black tar like mud from the cylinder head gasket and from the cylinder base gasket not to mention the case gasket. These gaskets leak far more greasy bituminous like filth and oozing, weeping goo than the exhaust gasket ever could.
Forget trying to maintain a spotless appearance with these woefully bad engines that make your shoes and jeans look like you've been working under a steam engine, oiling up the under carriage.
Having said that, they are far more reliable than they ought to be, for the muck and gunk that leaks from their sealing surfaces in an almost terminal fashion.