Suzuki 2 Strokes

ok looking at my (1970 t350) cylinders/barrles, I'm confused about the two middle oil lines, that go from the pump to the case just below the carbs, and supply 2 stroke into the cylinder, Itt seems like the base gaskets block that path ? how does this part of the oil system work ? thanks

I know nothing about a T350, but on a GT550 those line feeds go up into the intake manifold.

The ones that go to the cylinder bases flow oil to the main crank bearings. There are holes as necessary to allow that!