A snowmobile with arrangement of a four cycle engine is disclosed
providing a relatively low center of gravity for improved handling and
maneuverability. The engine comprises a cylinder unit slanted to the back
of the snowmobile and an improved packaging of auxiliary components in
order to optimize the location of the center of gravity on the
snowmobile. The engine has a balancer shaft rotatably coupled to the
crankshaft and the balancer shaft axis is positioned above the crankshaft
axis.