Intake air and carburetor heating arrangements for V-twin engines

A V-twin engine (20) having a crankcase (22) and a pair of cylinders (24) defining a V-space (46) therebetween, wherein the V-space is substantially enclosed, and a carburetor (52) is positioned within the V-space. An intake air preheating arrangement (28) supplies heated intake air to the carburetor, and a carburetor heating arrangement (30) heats the V-space and the carburetor which is positioned within the V-space. Each of the foregoing arrangements (28, 30), 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.