TRANSMISSION FOR INTERNAL COMBUSTION ENGINE

摘要

To make compact a transmission for an internal combustion engine in a saddle ride type vehicle for running on wasteland, to effectively utilize space, and to enable members to be laid out freely. A transmission for internal combustion engine, including a crankshaft disposed in parallel to the running direction of a vehicle body, and a forward-running/backward- running changeover mechanism; characterized in that supply sources of a working oil and a lubricating oil for an automatic transmission are arranged concentratedly on the side of a front crankcase cover, the changeover mechanism is provided between a rear crankcase and a rear crankcase cover, a forward-running/backward-running changeover shift drum is disposed on the upper side of a plane containing the axis of a main shaft and the axis of a counter shaft of the transmission, and one end portion of a shift spindle is projected from the rear crankcase cover at a position on a lateral side of the shift drum.