A V-twin engine having a crankcase and a pair of cylinders defining a V-space therebetween, wherein the V-space is substantially enclosed, and a carburetor is positioned within the V-space. Generally a stored indication of a user’s language preference is accessed in response to receipt of a call initiated by the user. The method is particularly useful in the manufacture of light adjustable optical elements such as intraocular lenses. A contact metal may be provided to the anode or cathode. The flow field may be established by sacrificially etching the conductive metal with an etchant configured to etch the conductive metal while leaving the structural metal at most substantially unetched. The apparatus also includes a message module configured to generate a reminder of the task based on the user’s historical travel information and a distance between the task location and a current position of the user.