| 摘要 |
PROBLEM TO BE SOLVED: To downsize a power unit including a water pump in a vehicle breadthwise direction and also to shorten piping length between a water jacket of a cylinder body and the water pump in a power unit for a small-sized vehicle which includes an internal combustion engine and a transmission accommodated in a transmission accommodation part formed on a crank case behind a cylinder body and is to be mounted on a body frame.SOLUTION: A water pump 54 for causing cooling water to flow to a water jacket 50 of a cylinder body 36 is disposed behind the cylinder body 36 and above a transmission accommodation part 35a. |
