| 摘要 |
PURPOSE:To suppress the height of a seat low by arranging a carburetor connected to the upstream edge of a suction pipe, in front of the front edge top surface of a cylinder head, thus securing the min. ground height of a 4-wheel motor-cycle. CONSTITUTION:The cylinder 17 of an engine 16 is tilted forward nearly to the horizontal state. Therefore, the upper surface of a crankcase 18, of course a cylinder head 19, can be set close to a frame member 3, and the whole installation position of the engine 16 can be raised, and the min. ground height can be secured sufficiently. Further, the necessity of arranging a carburetor 22 and an air cleaner box 26 under a seat 13 is avoided by leading-out forward an intake pipe 21 connected to a suction port 20. Further, the caburetor 22 is arranged in front of the engine 16. Therefore, the traveling wind can be received sufficiently, and the thermal influence due to the engine 16 can be reduced, and the freedom in installation position for the air cleaner box 26 can be increased. |
