Snowmobile

A stator cooling system for an engine assembly, the stator cooling system comprising:

• a crankcase having a throughbore forming a first airflow vent, wherein the first airflow vent is spaced apart from an exhaust manifold;
• a crankshaft rotatably mounted within the crankcase, wherein the crankshaft is configured to rotate with the crankshaft;
• a flywheel fixed to the crankshaft to rotate with the crankshaft;
• a fan assembly fixed to the flywheel, wherein the fan assembly includes:
• a body member forming a first surface;
• a fin that extends in a first direction from the body member and extends in a second direction along a curve from near a center of the fan assembly to an outer edge of the body member;
• a housing cover having a second throughbore forming a second air flow vent;
• wherein the fin is configured to cause an airflow at least by drawing air through the first airflow vent and out the second air flow vent.

A method of directing an airflow in an engine assembly, comprising:

• powering the engine assembly to rotate a crankshaft;
• rotating a flywheel fixed to the crankshaft;
• rotating a fan assembly fixed to the flywheel, wherein the fan assembly includes a curved fin;
• and
• moving air by the rotation of the fan assembly including the curved fin through the engine assembly.