What is an MV16? New model to me. The other half of this usually unbolts from block with two small bolts or really phillips screws. Usually what you have is horizontal, but maybe a model out there with a vertical mount? Not aware of one, just throwing that out there. IN later years lots of models of engines were more like experiments to see where the company was going to go with new regulations they needed to follow and odd items pop up that way.
16HP Magnum Vertical opposed twin. Just like the KT and Magnum horizontals.
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