Looks like the engine is positioned like the old ones with the same spark plug and carburetor locations. If it has a battery, it would be best to remove it before standing so there won't be any chance of acid spilling out. I've never seen one of the newer mowers like that one and can't tell about the gas cap. There might be a problem of gas dripping from the gas cap if it has a vent that don't screw in to close like the older ones. Other than that, don't see any reason why it wouldn't work standing on it's end.