Decompression arrangement for land vehicle

摘要

A land vehicle, such as a snowmobile, comprises a frame with an engine mounted to the frame. The frame is supported by at least one steerable member. The steerable member is controlled by a rider with a steering handle. The engine comprises a decompression mechanism to lower the compression ratio during starting, for instance. The decompression mechanism is actuated by an actuator mounted outside of an engine compartment in which the engine is mounted. The actuator can be a steering handle mounted lever. The decompression mechanism can be mounted on a cylinder head of the engine. In one arrangement that allows the mechanism to control compression in multiple cylinders, the mechanism can be mounted between adjacent exhaust ports of adjacent cylinders.