Abstract: An internal combustion engine including an electrical starting system which integrates several components into a single assembly for easier manufacture and operation of the engine. For example, a safety switch and key are integrated with the electric motor starting system. The starting system includes a starter motor having a drive member in selective driving relationship with the engine crankshaft, and also includes a key and a switch assembled to the starter motor.

Abstract: 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. An intake air preheating arrangement supplies heated intake air to the carburetor, and a carburetor heating arrangement heats the V-space and the carburetor which is positioned within the V-space. Each of the foregoing arrangements, used separately or in combination within one another, aids in preventing “freeze-up” of the carburetor during running of the engine in a cold environment.